"Magic stone?" Liu Ming frowned as he looked at the object on the pillar and asked.
"This is not any magic stone, but a special type of black crystal. These crystals can form a certain connection between them, and when arranged in different positions, they can establish a kind of barrier. What you're looking at is such a barrier. It is because of this barrier that the altar has remained intact until now," Luo Hou explained calmly.
"I see, so if I break it, I will be able to see the True Demon energy," Liu Ming asked slowly.
"Correct. The urgent task at hand is for you to break the barrier and the seal as quickly as possible before anyone else arrives, to let the True Demon energy flow out. However, I must warn you, once the True Demon energy leaks out, it could be sensed by other cultivators of the Demon path, who might quickly find this place," Luo Hou reminded him again.