The peaks of the Skyscraping Mountain were steep and treacherous, but it didn't pose much a challenge for Bluecloud Progenitor, Meng Qi, and the others. The only reason they didn't simply fly over on a green cloud was to prevent discovery.
Suppressing their breaths and the emanation of their energies, they quietly traversed along the mountain path. When they neared the peak, they found corpses of ordinary demons and zombies, still oozing pus, scattered on the ground. Earthy and heavy acrid smell wafted in the surrounding. It was the unmistakable gut-wrenching odor of decomposing flesh.
"It seems that even Corpse Demon has been slain..." Meng Qi told Jiang Zhiwei using the Secret Voice-Sending technique.
Only Corpse Demon of the Seven Great Demons had the ability to turn the living and dead into zombies and manipulate them. They wouldn't have encountered zombies there if he had left the mountain. He would definitely have brought the zombies along with him.