The doorway spat them into a cavern that looked like a wound in the world.

  A gulf yawned out from the threshold, wide as a river, deep as a swallowed star. No floor revealed itself to the eye, only a night of jagged spires far below, stabbed brightly for a heartbeat whenever a plasma arc cracked and ran its violet blade along the dark. Each burst lit the dust, fine Martian grit, so it seemed the air itself was made of sparks and breath.

  Opposite stood a lion’s head hewn from fused stone and crystal, its mane all quartz curls and its eyes set with red gems that smoldered like coals. The mouth gaped like a gate with fangs of stalactite, as if the beast had bitten the cavern open and dared them to step inside.

  A line of metallic-crystal ran from their ledge toward that mouth: a spine of meteorite, narrow as a rib. Veins under its skin pulsed faint, an erratic glow that came and went with the charge building in the room. Every few breaths the dust hissed, as if a great hand had rubbed it against stone; charge bled from grain to grain; the bridge would answer with a hum felt more in bone than ear.

  Kael set his boots at the brink and peered into the black. “Dust. That’s a long way down.”

  Syra hugged herself and leaned, not far, just enough to taste the depth. “I can’t see a bottom,” she said softly. “It keeps falling even when I stop looking.”

  Aethel stood a pace behind them, breathing the room. The air tasted of metal and winter. Spectral sight slid into place behind her eyes, thermal at first: she saw faint heat crawling along the meteor veins, warmer where the currents traveled, cooler where the stone waited its turn. Then pressure lines, the room’s breath traced in bands, tightening toward the lion’s mouth like invisible strings. She narrowed again to dust motion: motes drifting in elaborate loops; and there, in those loops, the ghost of edges.

  She took a small step forward. The edge of their ledge was rough and certain; the spine beyond was not. It rose out of the dark like a thin idea. She tested it with the ball of her foot and felt it hold, flexing a fraction, the way a bow holds an arrow’s weight.

  Kael’s hand shot out, instinctive. “Aethel.”

  “Hold,” she said.

  She put the other foot out.

  To Syra and Kael, no path. No stone. Only Aethel stepping into the gulf.

  “Wait!” Syra’s breath snapped like a string. “You’re, by the Stone, you’re walking on—”

  “—air,” Kael finished, too flat to be awe, too tight to be anything but fear. He moved with her, as if he could still catch a fall that would last forever. “Aethel. Stop.”

  A plasma bolt lanced the dark, and for a breath the dust lit fierce and white. In that flash, the spine briefly showed itself, a narrow ribbon suspended over the abyss, exactly where Aethel’s feet stood.

  The light died. The path was gone again.

  Aethel halted. She turned her head, switched her sight back to the simplest layer, plain light, and peered down at the black where her toes were.

  Then, she laughed. It was short, almost a startle, the sound of someone who’d finally understood the joke the room was telling.

  “You’re right,” she said. “I see what you mean.”

  “Which is?” Kael’s mouth barely moved.

  “You can’t see what I’m standing on,” Aethel said. “Not without the sight. To me the dust shows it. To you, it’s gone.” She glanced along the invisible line that only her vision caught and rolled a shoulder as if loosening a cramped muscle. “Stay here. Don’t move. I’ve got an idea.”

  “Aethel…” Syra reached, stopped herself, hands twisting in each other.

  Aethel stepped again.

  She did not stride. She placed her weight like a mason setting a keystone: heel rolled to ball, ball to toes, each time watching the dust’s eddies bend along the thin thread of stone. To Kael and Syra, she drifted out across the gulf on nothing at all, every second accompanied by the soft hum of charge building in the room.

  The lion’s red eyes brightened and faded, brightened and faded. Once, when they flared, a bolt leapt, struck a distant fang, and filled the cavern with a sound like a struck bell. Syra flinched. Kael didn’t; his attention had narrowed to one small body over a very large absence.

  “Left foot,” Aethel said absently, to herself more than them. “Good. Lift, set. The line’s thin here. Ah.” She paused, shifted, eased around the invisible lipping of a broken seam. Her breath clouded faint in the cold, then scattered. She moved again.

  Syra’s voice came thin. “She looks like a ghost.”

  “Not yet,” Kael said.

  She made the far side.

  The moment her boots found honest floor, she crouched and dug her hands into the deepest drift of dust she could find. The satchel on her hip bulged as she fed it. Another plasma flare. Aethel squinted, reached up, and pried a fist-sized meteorite shard from the crystal rubble under the lion’s jaw. It came away with a gritty sigh and a faint tingle in her palm.

  She stood, looked back into the dark where her people waited, and called across the gulf.

  “Hold your ground. I’m coming back.”

  “You step careful,” Kael called, voice even. “No hero tricks.”

  Aethel returned the way she’d gone, but not empty: as she moved she pinched two fingers in her satchel and salted dust ahead of her boots. The charged grit drifted and settled along the unseen ridge like frost following a fence-line. Twice she paused to adjust, once for a hairline crack where the bridge had split, once for a shallow bowl of stone that a careless foot would roll in.

  She reached the ledge. Set the meteorite down.

  “Spark it,” she told Kael.

  He drew without a word. Steel kissed iron-nickel; sparks leapt like a little swarm of shooting stars. The dust trail caught and went running out across the gulf, a vein of fire snapping to life along the invisible path she had marked. The cavern lit in a long, narrow ribbon, thin as a blade’s edge, wide enough for one set of boots and not much more.

  Syra exhaled so hard it shook. “It was there all along.”

  “Now you can see it,” Aethel said. She didn’t turn. She stepped onto the flaming line. “So follow me.”

  Syra went second. She stared not at the drop but at the fire-lace beneath her toes, breath measured, mouth slightly open the way she did when she was listing numbers in her head. Kael took rear guard, lion-skin blade in one hand, the meteorite still at his feet on the ledge; he left it. He needed both arms free. He set his weight careful and matched Aethel’s pace, eyes never leaving the burning line.

  They moved.

  The fire didn’t crackle. It whispered, a dry, steady sound as the charged dust burned cold and thin. Every few strides the cavern answered with a deep, thrumming note from somewhere far below; the spine hummed right back. Aethel kept her eyes on the places where those notes pinched together, the stress points where a misstep would cost a life.

  “Step left,” she said. “There’s a seam.”

  Syra’s foot hesitated, then found the safer face. “Got it.”

  Kael’s voice: “Keep moving. Don’t linger in the bright.”

  “Why?” Syra asked.

  “Because the bright tells the room exactly where to strike,” Kael said. “And I don’t fancy being a marker.”

  They reached the mid-span when the flame began to fade. It didn’t die all at once. It thinned, went from a gold line to a red filament to a memory, and then, black. Dust smell and nothing more.

  Syra stopped dead. “Aethel…”

  “I know,” Aethel said. “Hold to your footing.” She crouched, tapped the stone with two fingers to feel how it held her weight. “It’s still here.”

  “I can’t see it,” Syra whispered.

  “Then feel it.” Aethel’s voice didn’t sharpen. It steadied. “Your soles know stone. Don’t look down. Breathe in, now out. Find the flat in your foot.”

  Syra nodded once, Aethel heard it rather than saw it, and pulled a breath through her nose like she’d been taught as a child. Her stance settled. Her heels lowered. Her toes unclenched.

  “Good,” Aethel said.

  “Dust,” Kael murmured behind them. “Two Ticks, that’s all.” His breath fogged the air. “Then we move again.”

  “One Tick,” Aethel answered. She pinched dust and let it sift ahead, but the satchel offered only a stingy drift. “I need more.”

  Kael understood without asking. “Do it. We’ll hold.”

  Aethel stood, slid past the fear that wanted to make her legs heavy, and walked past the dark. Without the fire, the bridge was again nothing but a memory to two of them. To Aethel it was a thin pressure in the dust, a trick of cold air at ankle height, a line that the room’s breath refused to cross.

  She didn’t hurry. Hurrying wastes feet.

  Three steps. Nine. A pause to feel a seam. A reach, flat-palm, to check a bow in the stone’s back. Another breath. Another three.

  “Where is she?” Syra’s voice was quiet and a little small.

  “On the line,” Kael said. “Eyes forward.”

  A plasma arc cracked. For a heartbeat the whole spine flashed visible and Aethel’s silhouette appeared far ahead, steady as a wick in still air.

  “Oh,” Syra said. “Oh, I see her.”

  “Don’t chase the light,” Kael warned. “It lies.”

  Aethel reached the far edge. She crouched again into the lion’s shadow and filled her hands with dust. She took more this time, enough to make the satchel heavy. She rose, swept her gaze along the invisible ridge, and started back.

  Halfway to her people she salted the line with a long, slow pour, then flicked her fingers and let it drift into the tiny grooves her sight told her were there. When she was close enough to see Kael’s jaw and the shine of sweat braided with dust on Syra’s hair, she called, “Ready.”

  Kael brought his blade up and struck the empty air between them, no meteorite this time, just steel on steel at his hip. Sparks flew from the kiss and fell; the powder caught where Aethel had laid it. The path raced bright again, gold along the black, running past Aethel’s ankles and on toward the far side.

  Syra’s shoulders loosened. “I’ve got it. Moving.”

  “Stay on the edge of the light,” Aethel said, walking backward now as they came. “If it fades again, you’ll feel the drop if you wander too close to center. Edge carries better.”

  “Understood,” Kael said.

  They made another twenty strides like that, Aethel leading backward, Syra in the middle with her breath counting silently, Kael in the rear keeping their pace honest. The lion’s eyes lifted and dimmed; the cavern returned their steps with a deep, slow pulse that might have been wind or might have been something older.

  The flame began to thin again.

  “Almost,” Aethel called softly. “Six strides to ledge, no, five. The stone bows here, feel it. Don’t fight the curve.”

  “Feeling it,” Syra said, and the tremor in her voice was smaller.

  The light died when they were three strides out.

  Syra caught her breath. “Aethel…”

  “On me,” Aethel said. “Straight ahead. I’m your mark. Kael, anchor her wrist.”

  Kael’s hand found Syra’s forearm without fumbling. “Got you.”

  “Now step,” Aethel said.

  They did, and then again, and the ledge rose up under their boots like a friend leaning out of a crowd to take your weight.

  They stood there together, the far ledge, under the lion’s jaw. The dying smell of dust-fire hung around them like a memory of summer. The red eyes flared once, then settled back to their steady ember watch.

  “Two Ticks,” Syra said, swallowing. “Please.”

  Aethel nodded. “Two Ticks.” She took the water flask from her belt, put it in Syra’s hand. “Sip. Not gulps.”

  Syra sipped, coughed once, and sipped again. Some color creeped back into her mouth. “Better.”

  Kael rolled his shoulders and flexed his hands; they trembled from the steadiness he’d forced on them. “Stone take this place,” he said mildly, as if commenting on soup too thin. He angled his chin at Aethel. “That was clean work.”

  Aethel shook dust from her fingers, smiling. “No, it was dusty work.” She glanced back into the darkness, the ribbon of path already gone to memory again. “It won’t give us that trick twice.”

  “Why not?” Syra asked.

  “It learns,” Aethel said. “Or it listens.” She tapped the satchel. “We’ll carry more dust anyway. But past the mouth, there’ll be other rules.”

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  Kael lifted his head to the lion’s teeth, stalactite spears, some blackened at the tips from old strikes. “Teeth, throat, then belly,” he said. “Always more rules.”

  A hiss like silk on stone drifted from the cavern, dust rubbing rock somewhere in the unseen.

  Syra wiped her mouth with the back of her wrist and nodded. “I’m ready.”

  “No,” Aethel said, quiet but certain. “You’re brave. That isn’t the same. Breathe.”

  Syra did, once, then again.

  Aethel touched the lion’s nearest fang, stone cold, but a current tickled the pads of her fingers. She withdrew and shook her hand. “It bites, even still.”

  Kael stepped to her side, and for the first time since they’d entered the room, Aethel realized some small smile had bit into the corner of his mouth. “You went out on nothing,” he said. “Next time, ask which of us enjoys that part.”

  “You don’t,” Syra said.

  “Correct,” Kael said placidly. “Which is why I keep the rear.”

  Aethel’s laugh came out like breath warming a blade. “You’d have dragged us back to the door if I’d let you.”

  He didn’t deny it. “Now that we’re here,” he said, “we go through. Lead us, hearth. I’ll cover. Syra, when you have Echo left, give it to us only on my call or hers. We keep our strength as coin.”

  Syra lifted her chin. “I hear you.”

  “Good,” Aethel said. She tipped her head at the open mouth. “Inside.”

  They stepped beneath the lion’s jaw and into its throat, where the glitter of crystal narrowed into a long, ribbed passage. Behind them the gulf kept breathing, and the dust back there went on whispering to itself. The path across was gone to their eyes now, but the tiny taste of ozone and cold metal clung to their tongues as if the air remembered their feet.

  A faint tremor ticked under Aethel’s soles. The veins in the stone were starting to glow again.

  “Move,” she said. “Before the room decides it misses us.”

  “On you,” Kael said.

  They went in single file, Aethel first, Syra a half-stride behind her hip, Kael last, and for a little while the world was only quartz and breath and the low, distant hum that meant the cavern still had more to say.

  The three of them stumbled off the dust-lit path into a throat of stone. The glow behind them guttered, sparks sinking into dark like embers in a drowned fire. Ahead, the tunnel narrowed to a jagged passage, walls ridged and sharp, a gullet carved of crystal ribs. The air was charged, prickling skin and hair, each breath tasting like iron.

  Aethel steadied her hands against the stone. It thrummed beneath her palms, alive with pressure. She could feel the build of something dangerous even before the first strike came.

  The cavern snapped white.

  A vein of plasma tore from wall to wall, blinding, and the heat slammed into them like a hammer. Kael shoved both women flat, his arm up, his own breath scorched out of him. The bolt sizzled away, leaving the tunnel smoking.

  “Stone take it,” Kael rasped. He lifted his head, eyes narrowing against the haze. “If we try to run blind, we’re ash.”

  Syra coughed, clutching her chest. “It’s a pulse. I can hear it. Give me…” She pressed her palms to the wall, closed her eyes. A hum shivered out of her throat, thin at first, then sharper, tuned to the chamber’s bones. The echo came back jagged, fractured by the ribs. She winced. “Next strike in four beats.”

  “Four?” Kael barked. “Or five?”

  Syra shook her head, eyes watering. “Four. Don’t ask me again, just move.”

  Another flash screamed down the passage. This time they were ready, ducking behind a tooth of crystal that cracked and blackened under the arc.

  Kael pressed his shoulder against the wall. It gave a low groan. He shoved harder, wedging his sword in like a lever. The wall split, sending flakes of crystal clattering. Beneath the surface was a golden plate, thick, veined like hide. With a roar, Kael tore it free.

  The shard was broad enough to cover his frame, ridged like a lion’s mane in frozen fire. Sparks crawled its surface but didn’t bite through.

  “A shield,” he said, voice rough. “Dust-poor fit, but it’ll hold.”

  Aethel touched the plate; it hummed faint, resonant. “It’ll draw strikes,” she warned.

  “Better it than us.” Kael hefted it before them, crouched low.

  Syra sucked a breath, braced herself against the wall. “Two beats now. The pulses are tightening.”

  Aethel opened her spectral sight. Veins of color bled through stone, pressure rippling red, colder eddies blue, fractures glowing green. She tracked the swell, the telltale flare in the ribs.

  “Left flank will blow,” she snapped.

  Kael shifted the shield, sparks clawing against its edge as the strike came. It hit full force, searing bright, but the plate took the brunt. The smell of scorched gold filled the air. Kael staggered, teeth clenched, but held the barrier steady.

  They pushed forward in bursts, caught between Syra’s timing and Aethel’s sight. The throat twisted, narrow in places, wide in others, every bend a trap. Plasma arcs forked and crashed, their roar shaking the ribs until shards rained down.

  Sweat stung Aethel’s eyes. Her chest burned with every breath. “Kael, step wide…”

  He obeyed without hesitation, dragging the shield across the floor with a screech. A bolt ripped down where he’d stood a heartbeat before.

  Syra sagged, the hum faltering. Aethel grabbed her wrist. “Stay with me.”

  “I’m… fine,” Syra whispered, though her skin was pale, lips trembling. She pressed her head to the stone again, voice raw. “Three beats… middle rib.”

  The strike came true, lashing the rib dead center. Crystal exploded, shards slicing past their faces. One grazed Aethel’s cheek; she tasted copper.

  Kael snarled, low. “We’re running out of cover.”

  Aethel forced her breath steady. Her vision swam in layers, red for heat, green for fractures, blue for the cold drafts tugging through. She read the currents like a map. “Two more bends. That’s the exit.”

  Syra’s hum dropped to a whisper, barely audible, but enough. “Two beats… then one.”

  “Stone take it,” Kael muttered. He lifted the shield high. “Go!”

  They sprinted.

  Bolts ripped past, one slamming the shield so hard Kael was driven to his knees. Aethel hauled Syra forward, ribs aching, feet pounding across stone slick with melted crystal. Another strike lit the chamber, so close it seared her hair.

  “Last bend!” she cried.

  Kael staggered after them, shield blackened and smoking. His arms shook but he didn’t drop it. He rammed forward, body bent, teeth bared like an animal.

  The throat widened. A dim glow beckoned ahead, another chamber.

  Aethel shoved Syra through first. Kael followed, the shield clattering against the stone as he fell to one knee inside. A final bolt screamed against the passage mouth, but this time it struck empty air.

  Silence.

  They collapsed together, coughing, chests heaving. The glow of the lion’s throat lit faint behind them, flickering but fading.

  Kael ripped his helm off, sucking ragged breaths. His forearms were burned raw, his tunic scorched. He leaned on the shield, the golden ridges dulled and cracked but still whole.

  Syra slumped against the wall, sweat soaking her hair, throat too raw to hum another note. Her eyes fluttered but didn’t close.

  Aethel leaned back, every muscle trembling. Her cheek bled from the shard cut, her skin tingling from near strikes. But they were alive.

  “Dust take me,” Kael rasped. “That was a gauntlet.”

  Aethel let her head tip back, eyes closing. “Not the last.”

  Beyond them, deeper in the cavern, something glowed faint. A promise. A warning. The lion’s belly waited.

  The tunnel’s roar died behind them.

  For a long breath, none of them moved. The three of them leaned together against the raw stone, sweat cooling, ribs heaving. Every sound in the throat was gone but their own ragged breaths. Even the ozone stink began to fade.

  Kael’s shield lay smoking at his knee, its ridged mane cracked but whole. He ran a hand down it, then let his arm fall limp. “Ashfall,” he muttered. “Never want to see a passage like that again.”

  “Don’t speak it,” Aethel said softly. “The stone hears.” Her cheek still bled from the shard’s cut. She wiped it with the back of her hand, smearing red across pale skin, then pushed herself upright.

  Syra swallowed, her voice hoarse from humming. “Do we… rest here?”

  “No,” Kael said at once. He braced his back to the wall, forced his legs under him. “If the pulses shift again, this mouth will spit us back into fire. We move.”

  Aethel nodded. Her bones ached, but she knew he was right. The lion’s throat was no place to linger.

  They pressed forward, slower now, every step measured. The passage sloped downward into a wider hollow. The air changed, cooler, thicker, moving in faint tides like the breath of something immense.

  The belly.

  The cavern opened around them with such breadth that even Kael faltered. His torchlight barely reached the first ribs, let alone the ceiling. Massive pillars curved overhead like a cage of bone. Crystals jutted from the walls, dull gold flecked with veins of red, as though the lion’s insides still smoldered.

  Syra’s whisper trembled. “It’s alive.”

  “It’s stone,” Kael said, though his own voice was tight.

  “No,” Aethel murmured. Her spectral sight showed the cavern not as dead rock but as layers of pressure shifting, faint heat seeping through cracks, currents spiraling in slow coils. The belly was breathing.

  They stepped onto a floor of broad plates, black glass veined with dust. Every footfall cracked faint echoes, as though the cavern marked their passage.

  Kael held the shield forward, his other hand on his sword. The lion’s mane ridges caught the torch glow, throwing jagged shadows across the ribs.

  Syra stayed close to Aethel, one hand clutching her sleeve. Her hum had gone silent; her throat could give no more.

  “Easy now,” Aethel whispered. “Every sound carries.”

  They moved deeper. The belly seemed endless, stretching into gloom. From time to time sparks flickered high above, far ribs discharging faint arcs that never reached the floor. Once, a low groan rolled through the chamber, deep as an animal shifting in sleep.

  “Dust take it,” Kael muttered. “This place…”

  “It wants us quiet,” Aethel said.

  They obeyed.

  At length, the path narrowed to a kind of spine down the middle of the belly. To either side yawned pits of shadow. Aethel crouched, brushed dust into the air, and opened her spectral sight. The motes drifted downward, tugged by currents into the black. No floor.

  She straightened. “Stay to the center. If you slip…” She didn’t finish.

  Kael grimaced but tightened his grip on Syra’s hand. “No one slips.”

  They followed the spine. Every few steps, Aethel scattered dust and watched how it fell, marking the solid way forward. The torchlight wavered in the vastness, casting long flickers on ribs that curved like bars.

  Syra swayed once, nearly losing balance. Kael caught her, steadied her against his shoulder. “Hold fast, little one.”

  “I’m not…” Her voice cracked. She bit it off, shame burning in her eyes.

  Aethel touched her back. “You’re more than enough. Just keep breathing.”

  They pressed on.

  The belly grew narrower, ribs crowding closer, until the spine ended in a broad dais. It rose out of the black like an altar, flat and waiting. Beyond it, at the farthest reach of the chamber, a glow pulsed faintly golden.

  The Heart.

  Even dim, it threw a presence across the cavern that pressed against bone and breath alike. The lion’s belly felt smaller for it, ribs bowed inward as if to guard the core.

  Syra exhaled, a sound close to a sob. “It’s real.”

  Kael’s jaw clenched. “Stone keep us.”

  Aethel’s chest tightened. Her spectral sight broke on the Heart, it gave back no heat, no pressure, no color she knew. It was simply itself, untouchable. She could not measure it, only feel its call.

  They crossed the spine’s last length and reached the dais. The stone there was smooth, as if polished by hands that had never lived. It thrummed faint underfoot.

  Kael planted the shield, leaned both hands on it, and bowed his head. His body shook from strain but he held. “If there’s another trap, it’ll spring now.”

  None came. The chamber was utterly still.

  Syra sank to her knees, too spent to stand. She pressed both palms flat to the dais, as if the stone might steady her. Her eyes fixed on the glow.

  Aethel walked forward alone. Each step felt heavier than the last, not from the floor but from what waited. Her cheek stung from the shard’s cut; her breath rasped in her chest; yet the pull of the Heart drew her onward.

  The glow deepened, gold brightening, thorn-tips flaring like stars.

  Kael lifted his head. “Aethel…”

  She raised one hand without looking back. “I know.”

  Her steps carried her to the dais’s center. The Heart of Solion pulsed before her now, resting in the lion’s belly as if cradled by ribs of stone. Its light brushed her face, and for a moment the whole cavern seemed to hold its breath.

  Aethel lifted her palm.

  The glow sharpened, gold spilling across her skin. The air stirred, motes rising around her like dust in stormlight.

  Her hand hung suspended a finger’s breadth from the crystal’s surface.

  She drew a single breath.

  And stopped.

  Aethel’s palm touched the crystal.

  At once the cavern fled her senses. Stone, dust, Kael’s stance, Syra’s breath, all dissolved as if scraped from the marrow of the world. She was nowhere, and yet not nowhere, for around her opened a vault vast as creation. Darkness unrolled, infinite and soundless, and in that darkness burned stars.

  They gathered not at random but into form: a lion, immense and golden, stitched in living fire. Its mane was a crown of thorns tipped with thundering sparks, its paw spread wide, claws curved as if to grasp. She felt its breath ripple through her bones though no wind stirred. In its chest a single star quivered, brighter than all the rest, a heart forged of pure flame.

  The heart-star trembled, and then it fell.

  It broke loose from the constellation, trailing a thread of molten gold, and drifted down toward her. Not swift as a meteor but slow, deliberate, like a choice. Aethel could not breathe. Her knees threatened to fold, but still she watched, unable to close her eyes as the lion’s heart descended.

  When it neared, the silence of the void thickened, and in that silence she heard it. Not with ears, but in the marrow of her ribs, in the thin red beat of her blood. A voice that was no voice:

  I fell once, in the shadow of a darker Cycle. To lie in your world, to gather strength from dust and storm. I have waited deep, long, hidden. Now you carry me in your hands, Keeper-child.

  Aethel’s breath shook. She felt Kael’s name rise to her lips, Syra’s face flash in her mind, but none of this showed on her body. She was locked, transfixed, her hand frozen to the crystal.

  I will return, the star said inside her bones. Not now. When I am raised to my place, when the lion is whole again in the heavens, then shall you have my gift. Then I will give you skin unbroken, endurance unspent, breath renewed as gold. But not here. Not yet. Carry me. Protect me. Restore me.

  The star hovered before her face. She felt its heat scorch her skin without burning, its weight press her soul without crushing. Then it rose.

  Slowly, almost with sorrow, the lion-heart ascended. Back into the chest of its constellation. Back into its place among the fire-tips of mane and claw. For one brief instant the lion blazed entire, mane roaring, paw stretched wide, chest lit as if a sun had woken inside it. Then it dimmed. One ember after another guttered until the sky was bare again, the void unpinned, and Aethel was left with the crystal in her hand, heavy as a sealed promise.

  Her knees buckled. She fell forward against nothing, against air that remembered stone, and the cavern rushed back around her, the ribs of rock, the scorched floor, the hollow still echoing with plasma.

  She was gasping. The Heart of Solion burned cold in her hand. Its glow was dull, but her own veins seared as if her body had tried to contain a star.

  “Aethel!” Syra’s cry shattered the silence. Small hands caught at her arm, pulling though they could not bear her weight. Kael’s shadow dropped beside her, shield still braced across his back. His hand seized her shoulder.

  Her lips trembled. She wanted to speak but no sound came, only a rasp, stone over stone. Her throat felt scraped raw, her chest hollowed. Still she clutched the crystal, refusing to loose it.

  Kael’s eyes flicked to her hand, then to her face. “Stone take it, Keeper, breathe.”

  Syra pressed against her, sobbing, her hum ragged as if she could will strength back into her with sound alone.

  Aethel’s vision blurred, golden sparks still swimming across her sight. In her ribs the marrow whispered with a promise only she had heard, a weight she dared not share: Not yet. Carry me. Restore me.

  The Heart lay cold in her palm. The lion slept again in the sky.

  And Aethel, trembling on the cavern floor, knew nothing would ever be the same.

  The Heart pulsed once in her palm. A prick, sharp, sudden.

  The floor gave way.

  Stone ribs shuddered, split, and collapsed into a roaring black chute. The three of them plunged, Kael’s roar lost in the thunder of falling rock. Aethel clutched the crystal, her other hand clawing for anything, but there was nothing, only the rush.

  “Shield!” Kael bellowed. In one motion he tore the lion-plate from his back and slammed it flat beneath them. It caught the chute like a sledge, sparks screaming as stone ripped beneath its golden edge. They slid as if swallowed by the throat of some beast, whipped round bends, weightless then hammered down again, air seared with dust.

  The chute spat them out.

  Stone gave way to open sky, and suddenly they were flying, shield first, bursting from the rock face of the Vault’s second chamber. Ice caught them, cracked, skidded. The shield bucked apart beneath them, fragments scattering like golden scales across the frozen floor.

  Aethel was flung clear. She hit ice hard, slid on her side, the Heart locked in her grip. Her body spun toward the edge where black water churned beneath jagged ice floes.

  A scream cut across the chamber.

  Lyren.

  She was already there, kneeling at the edge, tears streaking her face. Her whole body trembled, memories dragging her under even before the ice could. She reached out, half frozen by her own fear, half by the sight of Aethel spinning toward the brink.

  Aethel’s fingers caught, nails splitting on ice. She slid further, closer to the water’s mouth. Lyren lunged, not brave, not reckless, but desperate, and together they nearly went in.

  Aethel wrapped her arm around Lyren’s waist and locked them both down, muscles screaming. The younger girl sobbed into her chest, words tumbling like water over stone.

  “I’m sorry, Aethel, I’m sorry, I didn’t mean it, I didn’t mean any of it.”

  Her voice broke. Snot and salt smeared across Aethel’s tunic as she clung like a drowning child.

  Aethel gathered her, ribs aching, throat raw, clutch fierce as a lioness around her cub. She pressed her cheek into Lyren’s hair, her own eyes burning.

  “I know,” she whispered. Nothing more, because nothing more was needed.

  For a long moment, ice cracked and settled around them, the chamber echoing with sobs and silence. Only when Kael’s heavy boots thudded close, only when Syra’s small hands touched Aethel’s shoulder, did Aethel lift her head again.

  She still held the Heart. And Lyren still clung as if the world itself might tear her away.

  The ice ticked beneath them, a fine crack racing away and dying.

  Light knifed up through the lake’s skin, a thin seam of green-silver that widened and rose until a Veilglass pane stood in the middle of the ice. Frost smoked along its edges; the air bent cold around it. The pane should have sung true.

  It sang wrong.

  Not the clear gold note they knew, but a thin, off-key whine with breath behind it, rope hissing, benches skittering, a chant starting where counting should be. Somewhere in that blur a child cried once, sharp, and was swallowed.

  Aethel wrapped the Heart in her sash and bound it tight to her ribs. She kissed Lyren’s hair, then set her on her feet. “On me.”

  Kael was already rising, jaw set. Syra wiped her face, shoulders squaring. Dereth’s shadow lifted at the edge of the light; he had been there the whole time, silent and steady. His voice was level.

  “Hands. Chain. On my count. We go.”

  They ran, boots hammering frost, toward the pane breathing wrong in the middle of the lake.

  “Now,” Dereth said.

  Aethel reached, and the Veil yielded like cold water. The sound on the far side surged, shouts, the slap of wood, the scrape of chalk, and the pane’s off-note climbed toward a scream.

  They stepped through.