The chamber buckled around them, walls crumbling as the shadowed figure loomed closer. The twin cubes pulsed in unison, their rhythm growing frantic—like a countdown.
Marcus and Emily ran, but the figure didn't pursue. Instead, it raised its hand. The air thickened. The ground cracked.
"You cannot run from what you've set in motion," the figure's voice echoed.
Suddenly, the exit vanished. The walls twisted, closing them in.
"Give me the key," the figure demanded once more.
"No," Marcus said, his grip on the cube tightening.
"Then you will see the truth."
The cubes pulsed faster. The floor fell away beneath them.
They landed in darkness. But not emptiness—something moved in the shadows. A low hiss rose, followed by the scrape of claws.
"Marcus…" Emily's voice trembled.
A shape surged forward. Marcus swung his flashlight, but the beam flickered and died.
The hiss grew louder.
"Stay close," he whispered.
They stumbled through the dark, the whispers returning: "The vessel… the sacrifice… the end…"
A light flared ahead. The figure stood in the center of a massive cavern, the second cube floating above its hand.
"It's time," the figure said.
"No more games!" Marcus shouted. "Who are you?"
The figure laughed—a sound like breaking glass.
"I am what comes after."
The cavern shook. The cubes rose higher, their light merging.
Emily screamed. The darkness rushed toward them.
Marcus ran.
He reached the figure just as the light exploded.
When the blinding brilliance faded, they stood on the edge of an abyss. Below, something stirred.
The figure turned, its face finally visible.
And Marcus's heart stopped.
It was his own face—twisted and wrong.
"This is the end," the reflection said.
And the abyss reached for them.