C1209 Genius of the Same Generation

"This... This is the infernal energy! "

The two brothers who had been to the Mi Tian secret realm were the most familiar with this.

However, what caused them to be shocked was why was there such a dense baleful aura underneath the Black Tortoise Palace.

Judging by the density of the infernal energy, it was not much weaker than the one in the Mi Tian secret realm.

Could it be