They were trapped. The towering black pillars shifted position the instant their backs were turned, herding them toward a dead-end wall of seamless masonry. The suspended shards of crystallized reality had begun to drift through the gray fog, their razor edges adjusting to reflect pale green light from the floor fissures. A localized gravity pocket formed at the center of the plain, crushing the air from Marcus's lungs and threatening to grind their defensive perimeter into dust against the brutalist architecture.
"A dead end," Taryn hissed, knuckles white on her dagger. Red residue from her earlier blasts shimmered over her armor. "The riddle says light fractures. We've got enough glass here to blind a god, and nowhere to go."
Lysara held her expression still while violet portals flickered with strain at her feet. "The Spire doesn't build walls for nothing. It builds puzzles to screen out the weak."
Marcus lifted his head against the gravity. His weight still rested on his left hip in the southpaw guard. He released the stance, squared his shoulders, and looked upward. High above, a tear in the ceiling spilled a jaundiced beam. It struck a cluster of floating shards twenty feet up. The crystals caught the light and broke it into a dozen weak rays that died in the fog.
He read the scene as he would a crime scene, looking for evidence rather than meaning.
"Hold your fire." Marcus raised one hand; both women froze. "We're treating this like a closed grid. Look at the perimeter layout." He pointed his runic dagger toward dormant sigils carved at different heights along the pillars. "Six connection nodes. When the primary beam hits the upper glass, the beam follows a ricochet sequence. We intercept its trajectory through the gaps and force it into the circuit."
Taryn had opened her mouth to argue with Lysara. She closed it and followed his line of sight. Neither woman asked whether he was sure.
A sharp throb struck his palm. Marcus doubled over. Cold struck instead of the expected rush of heat, a leaden weight pressed into his flesh and set alight at once. The rhythm was thump-thump, matching the distant Choir.
"Marcus?" Taryn moved toward him. "You're glowing."
He looked down. The sigil had become a living crack of light, and the cold burn was climbing. The mist thinned around the gaps between the shards. Fine blue threads appeared, connecting the crystals to dormant nodes on the pillars in a network wired end to end.
Marcus paused to study the sigil's activity before moving. He wanted to understand what was happening in his palm while it happened. He had run the fighting techniques slowly enough in the alcove to begin understanding them. He would do the same here.
The threads followed separate currents; crossings intensified the flow. He was reading the flow of light and geometry, translating what stood before him into a usable pattern.
It meets me partway, he thought. Whatever I bring to it, it works with. That's the rule.
"It's a path." Marcus straightened. The body's agility answered his intent with a grace he was still learning to trust. The threads made no sense, but he knew how to use them.
"Lysara, twenty paces back, to the lip of the chasm." He pointed. "Taryn, the pillar on the left, the one with the weeping eye. Angle the third shard with your blade."
The two women moved without another word.
"Lysara, open a portal there." He indicated a gap between two floating crystals. "Not a door. A shimmer. Bend the air five degrees."
Lysara raised her staff. Violet ripples appeared where he had pointed, steadying mist that had scattered the light.
Marcus stepped into the center of the fracture. The weight in his hand grew heavier near the primary beam. He did not touch the light. He touched the flow. When he reached out, the sigil rose toward the glow and the threads hummed in response.
"Now, Taryn, the shard!"
Taryn lunged. Her red flare struck the crystal's base and tilted it.
Marcus tracked the blue lines. The body's sensory wiring wanted to process the phenomenon as instinctive melody, but his analytical mind translated it into a wire diagram. He calculated the delay between Lysara's ripples and the crystal's spin. The burn crept toward his forearm; he metered the input and eased back from the threshold by a razor-thin margin. The pale light struck the primary shard, bent through the violet fold, rebounded through the gap, and slammed into the target grid.
The first node blazed blue.
"Node one secure." Marcus mapped the coordinates for the next launch.
For several minutes, he moved them through the labyrinth like pieces placed with care. He called positions, adjusted angles, and tracked each activation. Dormant ruins came alive node by node, their light cutting through the gravity distortion.
"You're doing it," Taryn gasped as the fifth node lit. Blue light washed over her scorched armor. "You remember how to read the flow."
"I don't remember." The burn reached his elbow; he tracked its edge and held below the limit. "I'm working with what's in front of me."
The last node was the hardest. Its shard rotated too fast to time by eye. Marcus waited, following the repeating pattern until he found the break.
"Seal the portal, Lysara! Taryn, flare it!"
Taryn's blast arrested the shard for a fraction of a second. In that gap, pale light shot through the final opening and struck the sixth node at the wall's center.
Silence followed. The wall dissolved into liquid shadow that sank into the floor, revealing a rift-gate flickering at the edge of the ruins.
The glow in Marcus's palm faded, leaving an ache. He sagged against a pillar, chest heaving.
Taryn came to him and turned his hand palm-up. The sigil remained, sharper than before, etched a fraction deeper into his skin.
"Marcus." Taryn kept her voice low. "I knew you were still in there. No one else could have found a fracture like that."
Her finger traced the mark. "The Shattering-Sigil is the reason we're alive. Nothing else could have changed the flow. There's a word for what you just did. I've heard it only in the old climbs, the ones before my time. A Sigil-Bearer doesn't use the sigil. They negotiate with it. You negotiated with six nodes at once."
Marcus looked at the mark, turning the name through his mind. He had not expected it to have a place in the world's structure rather than exist as a scar on his skin.
He had tracked the burn from beginning to end without crossing the limit. He had noticed the edge and eased back, adjusting instead of pushing until something broke.
One lesson from ten borrowed minutes in an alcove had held under real pressure.
Small, he thought. But mine.
He drew his hand back and faced the rift-gate. "We're not at the top."
The gate flickered, and beyond it a staircase descended into blue darkness.