In the evening, after completing his cultivation of the *Primal Sword Classic*, Feiyu sat cross-legged alone on the soft bed in his apartment and took the "Frost Odd Rock" out of the painted world, placing it before him.
Instantly, a biting chill permeated the entire room.
"The 'Frost Odd Rock' can affect a person's mind. Although its effect is powerful and can induce hallucinations, if I use it against an enemy, I will suffer hallucinations as well, hurting others and myself. Therefore, I must adapt to the properties of the 'Frost Odd Rock' in advance and use it to train my spiritual power. Not only will this strengthen my spiritual power, but it might even grant me immunity to its hallucinatory attacks."
Chapter 673