The Grand Arena was silent when the array activated. Dawn light spilled over eighty thousand seats, but the crowd barely registered. Their eyes were on the holographic map that bloomed above the arena floor, a maze of blue and gold light. Corridors twisted. Chambers pulsed. A brilliant golden point throbbed at the center. The Sanctuary. Scrying screens flickered to life around the perimeter. The map stabilized. The first dots began to move.

Dorian Hale’s voice carried across the stands, quiet for once. "One hundred fighters. Scattered across the outer ring. The first twenty-five to reach the Sanctuary advance. The labyrinth is not empty. And they will need to move fast." His voice faded. The screens held. And eighty thousand people leaned forward to watch.

***

The world snapped into focus, and the first thing Dominic registered was heat.

A dry, baked pressure against his back, like standing too near an open furnace. He turned. The corridor behind him stretched into darkness, but at the far end, barely visible, a faint orange glow pulsed against the stone. He couldn’t see the lava from here. He could feel it. Hot air moved past him toward the center, drawn like breath into a lung. The labyrinth was already pushing everyone inward, and it was not patient.

Wobbly sat on his shoulder, the pink bow slightly tilted from the transit. It wobbled. Then again, harder. Its body rotated toward the left corridor. A small, urgent burble. Left. Go left.

Dominic looked at the moss. The left corridor was dimmer. Less blue. By the signal, he should go right. Toward the brighter patches. Toward the Sanctuary. But the heat at his back was already worse than it had been a minute ago. Standing still was death. Wobbly had never led him wrong.

So he went left.

The corridor ran straight for fifty feet. Hooked right. Branched. Wobbly pressed left again. Dominic followed. The moss thinned to almost nothing, but the heat at his back faded. He moved faster. Boots scraping stone. Breathing loud in the narrow space. The walls were damp and close, and the air tasted like old copper and something burning far away.

The sentinel was waiting around the fourth corner.

Eight feet of carved stone. No face. No eyes. It stood motionless, blocking the corridor entirely, and when Dominic’s foot hit the flagstone three feet from its base, it moved with the sudden, grinding speed.

The first swing came horizontal, a stone arm sweeping at neck height with enough force to pulp a man against the wall. Dominic dropped. The fist hit the wall instead. Stone exploded inward. Chunks the size of his head sprayed across the corridor. One clipped his shoulder and spun him halfway around. Dust filled the air. He couldn’t see. He couldn’t breathe. He rolled blind, came up with his sword drawn, and drove the blade into the joint beneath the sentinel’s shoulder by feel.

Steel shrieked against stone. The arm seized. Gears of ancient magic ground to a halt. Dominic yanked his sword free and ran. Behind him, the sentinel’s second arm was already rising, too slow. He was past it. Around the corner. Through a narrow passage that scraped his shoulders. The sentinel didn’t follow. Its path ended at the rubble it had made.

Dominic kept running. The heat was behind him. For now.

***

The lava crept through the outer ring at the pace of a walking man. A slow orange line that filled corridors like water filling a basin. The stone it touched turned black, then red, then molten. The air above it shimmered. Fighters who stood still too long, paralyzed at junctions, felt the temperature climb one degree, then another, then another, until the soles of their boots began to smoke.

One of the fighters learned this the hard way. He’d been frozen at a three-way branch for four minutes. He couldn’t commit to a path. By the time he decided, the corridor behind him was glowing orange. He ran. He took the wrong turn. The lava took the right one. They met at the junction. His scream lasted seconds. Then his dot went dark.

Others followed. Fighters who were too cautious. Fighters who tried to wait out the clock. Fighters who thought they could hide in dead ends and let the danger pass. The lava didn’t pass. It filled. It consumed. It pushed inward. The air grew colder as you moved toward the center, where the Sanctuary’s mana core breathed like a lung. Fighters who followed the cold moved toward survival. Fighters who didn’t met an early disqualification.

***

Dominic hit the first dead end six minutes in.

The corridor ahead stopped at a blank wall. No turns. No passages. Stone, cold and final. He spun. The way back was still open, but the heat had crept closer. He could smell it now. Dry and mineral, like hot rocks before a storm. The orange glow was visible at the far end of the corridor, painting the walls in flickering light.

Wobbly burbled, low and uncertain. The maze had shifted. A wall had rotated into place behind him, sealing the passage he’d come through. He was in a box, and the box was getting smaller.

Dominic pressed his palm against the stone. Cool. The wall to his left was warmer. The wall to his right was cold. He followed the cold, hand trailing the stone, until his fingers found a seam. A crack. A section of wall that didn’t quite meet the floor. He dropped to his knees. The gap was narrow. A foot and a half at most. The air coming through it was cold.

Behind him, the corridor brightened. Orange. Closer.

He slid through. Stone scraped his back. His chest. Wobbly flattened itself to a disc, flowing through beside him. For one terrible moment, his shoulders caught. He was stuck. Breathing stone dust. The heat behind him pressing closer, and he could hear it now, a low hiss like something breathing. He wrenched forward. Skin tore. He didn’t care. He stumbled into a new corridor, gasping.

The moss here was brighter. Teal. He was going the right way. Behind him, the dead-end corridor filled with orange light. The seam he’d squeezed through glowed red at the edges. Then the lava hit it and sealed it shut with a sound like a door slamming.

Dominic was already running.

***

Lysandra Li ran because standing still felt like dying.

The moss was too faint to read. The corridors were too dark. Every junction she chose at random, trusting her feet more than her eyes. Her club was in both hands, the iron head bouncing against her shoulder with each stride. She was already bleeding from a gash on her forearm. She didn’t remember when that had started. She didn’t remember the last three turns. She just knew the air behind her was hotter than the air ahead, and that was the only signal she had.

She rounded a corner and the sentinel was right there.

Three feet away. Mid-swing. A stone arm already arcing toward her skull. There was no time to think. No time to dodge properly. She threw herself flat. The fist passed over her head, close enough to feel the wind of it, close enough that grit from the stone sprayed across the back of her neck. The fist hit the wall behind her and punched a hole clean through it.

She scrambled up. Her shoulder screamed. The sentinel was already pulling its arm back for a second swing. She stepped inside its reach, inside the arc of the blow, so close she could smell the old dust baked into its stone, and drove the iron club into its knee. The crack split the corridor. The sentinel stumbled, one leg dragging, off balance. She hit it again, higher, at the hip joint, putting everything she had into it. The leg gave way completely. The sentinel toppled backward and hit the floor with a sound like a coffin closing.

Lysandra was past it before the dust settled.

Her shoulder throbbed. Her breath came in ragged gasps. Her hands were shaking. But the corridor ahead was colder than the one behind. She followed the cold.

***

The Dark Hounds found Dominic in a narrow passage where the moss had dimmed to almost nothing.

He heard them before he saw them. A faint, rhythmic scratching against stone, like rats in a wall. Then the sound multiplied. Three sets of claws. Three creatures. Wobbly’s trembling sharpened against his neck, a vibration so fine and urgent it felt like a second heartbeat. Close. Too close.

Dominic stopped. Didn’t breathe. The hounds came around the corner in a pack. Pale bodies low to the ground. Heads smooth and eyeless, dominated by enormous ears that twitched and swiveled with every sound. They moved in perfect silence except for their claws. One of them was close enough that Dominic could see the ridges on its ear cartilage, the way its nostrils flared, the faint tremor in its flank.

One paused. Its head turned toward Dominic. The ears swiveled. Focused. Locked on. Dominic’s heart slammed against his ribs, and he knew with absolute certainty that if it heard that, he was dead.

It didn’t hear it. His training held. His stillness held. The hound’s ears twitched once more, scanning, uncertain. Then it moved on, following the pack down the corridor.

Dominic waited until the scratching faded entirely. Then he exhaled. Wobbly’s trembling eased.

"Good call," he whispered.

Wobbly burbled. Keep moving.

He moved. The heat pressed against his back like an open hand, and somewhere behind him, the lava was still coming.

***

He’d followed Wobbly through a series of narrow passages, each one dimmer than the last, and emerged into a wide circular room with a high ceiling and no visible exits. The walls were smooth. The moss was barely blue. Behind him, the passage he’d entered through was already glowing orange.

He circled the room twice. No seams. No cracks. No cold air. The heat was climbing fast now. Wobbly trembled, pressing toward the north wall, but the north wall was solid stone. Dominic pressed his hands against it. Warm. Getting warmer. The lava was on the other side, and it was close.

He reached through the bond. A spike of Theresa’s amplification flooded his limbs. Strength surged. He drove his shoulder into the north wall. Stone cracked. Pain flared through his arm. He hit it again. The crack widened. Heat bled through the gap, a blast of dry air that seared his face. He hit it a third time, and the wall crumbled outward into a new corridor.

The new corridor was already filling with orange light.

The lava was ten feet away and coming fast. A slow, churning river of molten stone, black-crusted on top, glowing underneath. The heat hit him like a physical blow. His sleeve began to smoke.

Dominic ran. The corridor sloped upward, away from the flow. The lava followed, slower on the incline but relentless, a tongue of liquid fire licking at his heels. He sprinted until his lungs burned and his vision blurred and the heat faded from killing to merely dangerous. Wobbly burbled frantically, pressing forward, guiding him through turns he didn’t have time to question.

When he finally stopped, bent over, gasping, his hands on his knees, the corridor behind him was dark. The lava had stopped its advance. For now.

He straightened. Kept moving.

***

Baines had been tracking Dominic for a bit now. He’d saw him short after Dominic had escaped the lava.

He’d watched Dominic move through the corridors without hesitation. Almost no wrong turns. No backtracking. The Summoner knew where he was going, and Baines wanted to know how. So he followed. Stayed far enough to not be detected by a hurrying Dominic. It worked until the chamber of pillars.

The room was wide. Pillared. The moss bright teal. Dominic was halfway across when Baines stepped out of the shadows behind him. His axe was in his hands. Dust streaked his face. His eyes were hard.

"Kane."

Dominic stopped. Turned.

Baines looked at Wobbly. The pink bow. The gelatinous body. The slow, steady wobble. He laughed. A short, humorless sound, more exhale than humor.

"Seems your summon is actually good for something, huh?" He shook his head. "Victor has told me so much about..."

Wobbly trembled. It sensed it. A sudden, insistent pulse against Dominic’s neck.

Behind Baines, a pillar shifted. A sentinel. Larger than the ones in the outer ring. Broader. Heavier. It had been standing so still it was invisible, part of the architecture. Now its stone fists were rising.

Baines didn’t see it yet. He was still looking at Dominic, still caught in his own momentum, still forming the insult.

Dominic moved.

Theresa’s amplification flooded his limbs. Florence’s combat sense whispered where the swing would land, the angle of the blow, the half-second before impact. He crossed the distance in a breath. Caught Baines by the shoulder. Threw him sideways with everything he had.

The sentinel’s fist came down where Baines had been standing. The stone floor shattered. Cracks spiderwebbed outward. Dust exploded in a choking cloud.

Dominic caught the sentinel’s wrist. The Wobbly trait made his grip hold. He twisted the sentinel’s arm across its body. The ancient stone groaned. The sentinel stumbled, off balance. Its second swing went wide, smashing a pillar instead.

Dominic stepped back, tapped Baines on the shoulder with his sword to score a point and walked away. Wobbly bobbed on his shoulder.

Baines stood in the dust, staring at Dominic’s back. The sentinel was recovering behind him. He should have been grateful. He wasn’t. The boy he knew as a joke, the dead house, the cockroach, had just saved his life and scored on him in the same motion. That didn’t fit any story he’d been told.

Dominic’s footsteps faded down the corridor. Baines watched him go. His hands were shaking. He tightened his grip on the axe. Then he picked it up and followed.