"Daggers!"
The predator lunged before Kael could form another thought. A broad paw ripped through the fog, claws aimed at his face.
His right hand rose on instinct.
Clang!
Steel met shadow. The impact jarred his arm to the shoulder, yet the parry held. Kael staggered once, surprised by the speed and precision of the movement. He had spent nine years fighting with a detective's habits: firearms, close quarters, controlled bursts of violence. This body knew another language. Marcus Reed had trained with daggers until the weapons seemed to belong to his hands.
The runes carved into the blades flared blue.
Memory seized him.
The ruined hall vanished. Kael stood beneath an aurora that spilled green and violet across a sky crowded with floating islands. Crystal towers rose from those islands, joined by thick blue vines that carried light through their walls. The whole world glowed with impossible life.
Aetheris.
Then the sky split.
Rift-scars tore across the heavens and leaked darkness into the air. The islands lost their lift one by one. They tilted, broke apart, and fell toward the abyss below. Crystalline towers cracked under a spreading black rot. The blue vines dimmed as though an unseen hand were draining them.
Aetheris was dying.
The vision gave Kael one brutal certainty: the Void Spire was more than a dungeon. It might be the last structure still holding that collapsing reality together. His borrowed body was tied to the disaster somehow, and the creature in front of him was part of the same chain.
The world snapped back into place.
Kael's boots scraped across the black floor. The beast's charge had forced him backward, but he remained standing. Its eyes burned with a cruel intelligence, like embers surviving in a grave that should have gone cold.
Then it howled.
The sound began as a roar and broke into human voices. Climbers begged from inside it. Some pleaded for mercy. Others repeated names until the words dissolved into static. The noise spilled from the monster's ruined jaw and rattled Kael's teeth.
He raised both blades.
The creature struck with two of its three front limbs.
One blow caught him across the chest. Kael flew backward and hit an obsidian pillar hard enough to drive the air from his lungs. Pain flashed between his ribs. Sweat and ozone filled his mouth. The edges of his vision darkened.
"Keep fighting, Kael."
The voice belonged to his old mentor. It surfaced from memory with the same steady patience that had carried Kael through his first failed case.
The beast lowered its body.
Its hind legs compressed beneath the mass of shadow. The next attack would kill him.
Kael looked past it and saw Aetheris dying again in his mind. He saw the islands fall. He saw the blue vines go dark. He saw another world disappear while he stood still.
Not this time.
The predator launched itself.
Kael dropped at the last instant. The creature passed over him, close enough for its cold wake to raise gooseflesh along his arms. Its rough tail struck his back and sent him rolling across the floor.
He came up beneath its body.
Both daggers drove toward the gap under its broken jaw.
The runes ignited silver-blue.
The blades pierced the dark hide. Kael twisted the hilts and felt the Shattering-Sigil answer through his palms. Energy surged along the steel, entered the creature's chest, and burst outward in a flash that turned the fog white.
The predator made no sound.
Its ember-colored eyes faded. The body collapsed into black vapor, then thinned until nothing remained but a stain of cold air.
Kael stayed on one knee.
His chest heaved. Sweat ran into his eyes, carrying a thin line of the creature's dark blood from his forehead. He wiped it away and stared at his hands. They trembled around the daggers. The liquid coating the blades shimmered like oil under moonlight, nothing like blood from any crime scene he had worked in Chicago.
He pushed himself upright.
The hall had gone silent.
"I killed it," he whispered.
The words sounded too small for what had happened. A minute ago, the beast had been a living weapon. Now it was gone because he had found the right angle, trusted a body he did not understand, and let the sigil finish the work.
That last part bothered him most.
Kael looked at the daggers. The creature had attacked first. The evidence supported self-defense. His instincts accepted the conclusion. His stomach did not.
He had crossed a line. He could feel it, even if he could not name it yet.
A flash moved inside the fog.
A glass vial struck the black stone beside him and spun across the floor. Kael raised a dagger, searching for the hand that had thrown it. No footsteps followed. No voice broke the silence. Only a faint scrape marked the retreat of whoever had released the vial.
He crouched and picked it up.
Blue liquid circled inside the glass. It gave off a soft chime when he turned it, then settled into a slow, steady rotation. The sound carried the pressure of a storm sealed behind glass.
Kael held the vial closer.
The liquid brightened.
For one instant, he saw the floating islands of Aetheris reflected in its surface. Their crystal towers stood whole. Their blue vines shone beneath the aurora.
Then the reflection blackened, and a thin crack appeared across the glass.
Someone had left him a clue.