Judging by the condition of the Ten Thousand Spirit Book, it was undoubtedly treated as a normal Former Sui Cultivator's notes and stored in the Book Collection Pavilion.
That is to say, it had shown no abnormalities when checked by the Book Collection Pavilion before.
Somebody had once obtained the Ten Thousand Spirit Book and, through some means, tore out a page to create the Spirit Summoning Paper. It wasn't until I brought the Spirit Summoning Paper that the Ten Thousand Spirit Book was reactivated. Of course, it's also possible that the Ten Thousand Spirit Book itself actively split off a piece of Spirit Summoning Paper...
Li Ang narrowed his eyes, rapidly pondering. The Ten Thousand Spirit Book feeds on everything of its host and is certainly no benign entity.
He had already been parasitized by Mo Si and lacked the energy to resist a new curse.
