If a book without a genre was right about one secret, it could be counted as a coincidence. If it was right about two secrets, there had to be something fishy going on. But if it was right about three secrets, it meant that the author had to have possessed undeniable knowledge.
It was possible that the author had interacted with feys with the Barren bloodline, sea demons, and devils. Otherwise, they would not have been able to write such a book.
After three verifications, Lin Yuan could be certain that the rest of the Annal of Monster Information was also accurate.
Lin Yuan called Genius out of the marsh world and instructed it to memorize the entire Annal of Monster Information.
Lin Yuan was going to read the book for himself because there were many parts he could ponder over.
But this way, before Lin Yuan was done reading the Annal of Monster Information and verified its contents, he would not have to worry about it becoming lost or destroyed.