After upgrading the Blood Eagle with Blood Sacrifice, Da Fei decided to once again challenge the treasures on the ground. The Blood Eagle underwent the Blood Sacrifice four times, gaining a total of four precious Growth Skill Points, the first of which was used to learn the Petrification Aura, and Da Fei also decided to use the remaining three points to learn something that would increase the chances of success for this operation.
Honestly, ever since he first killed the Petrified Giant Lizard in the swamp and obtained a Petrification Aura book, Da Fei subconsciously believed it was easy to get and thought killing more bosses would definitely yield even more awesome skills, so he held onto the skill points until he forgot about them. But looking at it now, the probability of monsters dropping boss skill books is really low. Some things are truly more chance-based than effort-based.
