The passage from the dragon graveyard led Grim through corridors carved from stone that he didn't recognize. The walls bore no markings. The deeper he went, the more the air seemed to thicken, making breathing harder.
Finally, the corridor opened into a chamber.
The hall stretched into darkness in all directions. Massive pillars rose from the floor, each one easily a hundred feet in diameter. The top of the pillars disappeared into the black void overhead.
At the center of this space, Grim found what he had come to stop.
Four perfectly circular holes had been carved into the floor. Their combined power created streams of energy that flowed toward the chamber's center and then upwards towards something in the darkness.
Jiaolong stood beside the keyholes, but he was no longer the dragon Grim had been pursuing. The corruption had completed its transformation.