C899 Tomb

The cave was pitch black, and Lee Yang felt as if he had walked into a huge space. After entering the cave, he reached out and touched both sides of the cave, but did not touch the wall.

The sound of his footsteps and Fifteen's footsteps echoed in this space, making people feel a little cold in their hearts.

"I said, what is this place?" Lee Yang asked in a low voice.

Fifteen said