Otherwise, what's this ghostly thing in front of us.
"I've researched these things before. They're basically formed by two factors. The first is environmental factors. In this ancient tomb, their bodies undergo a corpse transformation, or rather, they actually form a new kind of life form. Another is after death, they're infected with Gu Poison and placed in a sealed environment. While the poison is dormant in a sealed state, it gets activated once it senses the Yang energy of a human. Once activated, it will follow the aura of a living person and start killing until everyone is eliminated!"
"Um..."
Su Xuan was momentarily speechless, feeling a wave of shock in his heart. He could actually sense that this was likely caused by Gu Poison. The formation conditions for a corpse transformation are complex, and perhaps here, it's difficult to trigger such a change.
