Inside the BOSS domain.
The darkness inside will cause a normal human to not see anything, even their own body. The air was cold enough to freeze one's breath, making their skin shiver. The screams that echoed along the walls continued to drawl, making one's scalp stand up from fright.
Lucien surveyed the surrounding, looking for a faint trace of human. The crescent blade in his hand had somehow activated some of its powers and placed it on Lucien's eyes. Making him see the demonic energy in a ghost body.
Those that don't have that demonic energy are human for sure.
That's what Lucien understand at first. But he remembered that Lexi and Leon are actually half demon, so naturally, they have demonic energy in their bodies. As Lucien pondered this problem on how he could find the two since this method is not effective, the mob of ghosts he was following arrived at the center of the domain.