The underground chamber shook violently.

Stone broke loose from the ceiling.

Lucien pulled Seraphina closer as the ground split beneath them.

"Everyone, move!"

They rushed toward the staircase.

But before they could reach it, a wall of black stone rose from the ground, sealing the exit.

Nethros attacked it with the Void.

Nothing happened.

He stepped back.

"I can't break it."

The Keeper stared at the wall.

"Because it isn't stone."

Lucien turned.

"Then what is it?"

The Keeper's face was pale.

"A seal."

---

A cold wind swept through the chamber.

The shattered pieces of the Crimson Core began floating.

One by one, they moved toward the center of...