Marcus cleared his throat. The sharp sound broke the heavy silence of the ruins. He planted his feet, weight on his left hip, and held the southpaw guard he had settled into since the Keeper's riddle. His silver eyes stayed on the empty air while he prepared to test the evidence.
He repeated the words the ancient, judging presence had whispered into the fog.
"Light fractures," he murmured.
As the last syllable left his mouth, the world shattered around them.
A sharp crack ricocheted through the ruins. The crack ran through the floor's governing pattern. The rolling gray mist convulsed, then hardened into glass. Vapor became thousands of sharp shards suspended in midair. The shards were local reality, crystallized and drifting through the dark with a slow, predatory grace.
"Get back!" Taryn cried. Her boots skidded on stone dust as she reached for the pouches on her leather bandolier.
For a heartbeat, Marcus froze. Every instinct from the streets of Chicago told him to find cover. He needed his back against a solid wall, but the inner sanctum held no intact structures. Every route led toward the empty void. He looked at Taryn, then Lysara.
Their faces reflected his own profound confusion. Taryn's jaw tightened as the glass formed a slow circle around them, sealing the masonry path they had climbed. Lysara raised her light-green staff, haloed by violet glow, but did not strike. There was no physical target.
"What is this, Marcus?" Lysara's voice thinned with rare vulnerability. "I've crossed this threshold a dozen times. The mist is supposed to confuse spatial awareness. It does not solidify."
Marcus searched the scarce fragments of data in his mind. He could not remember how the Spire's language barriers worked, and Aetheris's inherited memories offered no knowledge of this changing code. They sat useless in a cage of frozen reality.
A crime scene was still a crime scene. Physical evidence did not lie. He studied the angles of the floating shards and tracked the pale green light bending and splintering through them.
"The riddle," Marcus said. He planted his feet to anchor them. "It's a structural breakdown. If light fractures, the environment itself is the fractured layout. We're standing inside the break."
Lysara studied him, catching the deduction and the cold logic with which he cataloged the magical anomaly.
"Then I'll burn us a path out," Taryn snarled.
She struck a volatile vial against her dagger's steel hilt. The wax seal cracked, and she hurled it into the nearest cluster of floating shards.
The blast screamed as red alchemical energy through the fog. A wave of fire swept over the black pillars, throwing red shadows across them. The force shook Marcus to his core. Heat rolled across his skin, carrying sulfur and ozone.
The shards held.
The glass drank the light rather than fracturing. Alchemical fire vanished into the clear structure, which scattered the blast into thin red lines. They flickered across the ruins like dying embers behind a window.
"It's not enough." Taryn caught her breath and retreated half a step. Residual red light caught in her auburn hair. "My blasts are feeding the matrix."
Lysara stepped forward, white hair whipping across her face. Her staff struck the black floor hard enough to jar the dust. "Then we follow the infrastructure. The pillars will anchor us."
She closed her eyes and tilted her head. Lysara listened to the silent friction of the rifts and read the barrier's geometry. As a Rift-Warden, she could read the subsurface layout of the Spire. The staff's tip passed over the floor, tracing stress lines where the rifts met the heavy architecture.
"The floating shards are a secondary symptom," Lysara said, pointing toward the towering structures ahead. "The Spire's sentinel program sends time compression through the pillars. The dead spaces behind the right-angled walls will help. The pillars will shield us from the shifting glass matrix."
She raised her obsidian-skinned hand. Air rippled before her, first faintly, then in violet rings like stones dropped in dark water. The ripples calmed the air, stilled the debris, and lit safe paths between the giant columns.
Violet light spilled through the portal, throwing long shadows across the shards. Lysara waved them closer and crept along the pillars, dodging crystal clusters that Taryn's fire had missed.
As the light passed over him, an unwelcome thought settled into Marcus's mind. Taryn and Lysara had specialized skills: alchemy and rift-weaving. They had built those skills over years of hard climbs and grown stronger on every conquered floor. He had no equivalent history, training, or context. All he possessed was a stolen sigil and a dead man's borrowed muscle memory.
Was it the fall? Did the near-death reset strip Marcus Reed of his active powers too?
The question had no time to take root. The suffocating silence broke with a chant, not a monster's roar or an explosion.
A distant, jarring sound came from the pillars. The Nameless Choir's layered voices pulled at the edges of his attention, swinging between a mourning dirge and a frequency almost triumphant.
Heat erupted from his left palm. Marcus gasped, fingers curling inward.
The blue sigil had begun to pulse in time with the Choir's chant.
The ground answered with four hard jolts.
A biological rhythm vibrated inside his flesh, calling to his central nervous system and urging him toward the shifting crystal maze.
"Listen," Taryn said, gripping her dagger. Her hand shook. "The Choir has not sounded like this since we crossed the threshold of Floor One."
"I hear it." Marcus watched the sigil, already bracing for a trap.
Magic and the environment had earned no trust. The Choir might guide them toward an exit or bait them into an execution trap. The Keeper had delivered the riddle, yet the Choir sang what could be its solution. Everything in this vertical prison carried a hidden cost, and any song might end as a funeral march.
"Stay close," Marcus said. He locked into the southpaw guard and tracked Lysara's violet light as she charted the pillar paths. "The light has broken. Now we find out what falls from the stars."
As they moved deeper into the corridor, the carvings rearranged behind them into shapes none recognized