Yusuf Zuck, though capable of flying in these mountains, did not dare to recklessly venture forth; he was no fool and knew the mountains harbored strange dangers, so he had to ensure his own safety first.
As they progressed deeper into the mountain, the fog grew denser and the poison more potent. Everyone began to experience an unbearable itching on their skin, especially Ruth Wilcox and Ember Vance, whose cultivation levels were the lowest. They were already showing signs of dizziness and their skin was turning purplish-blue, evidently a reaction to the poison they had inhaled.
Yusuf Zuck, on the other hand, was fine, with no trouble at all. Everything was normal for him since he had Blood Beads in his mind, which could secrete purple droplets capable of neutralizing any poison.
Furthermore, Yusuf Zuck made the surprising discovery that Brian Zuck was also unaffected and showed no signs of poisoning. While the major demons were poisoned, Brian Zuck's little face remained ruddy.