Lu Yun gasped, instantly retracting the hellfire he was about to unleash.

“That’s right, this place has fused with only a corner of hell. It isn’t the real thing!” Cold sweat beaded across his forehead.

Hell was defined by the presence of hellfire. A hell that contained hellfire would spawn an independent set of laws and generate natural energy all by itself. If Lu Yun used hellfire here, the unknown power might steal it for itself and create a new world with the flame.

Once that happened, he would no longer be able to fuse it back into the original hell at all. Even if he somehow subjugated this place later on, it would only...