The most important reason however was that the battle between the bald immortal and him would most likely destroy the library causing him to lose all the books inside. Even though Yoze didn't value the martial art books inside the library as much as the animal records since they both were in the same location he already regarded them as his property.
He didn't want his new property to get destroyed the moment he had just acquired them and still wanted to take some of them home. For those few reasons, Yoze punched a huge hole in the wall on the third floor that faced the direction of the bald immortal.
The blast from his punch created such a loud explosion that it attracted the bald immortal's attention while alerting the Beast Hunter sect members who had just figured out the situation. With the combination of an angry scream and the deafening explosion many of the sect members knew that they had to escape before they got caught up in the crossfire.