They obviously couldn't have known that it was the result of Sharky using his Mindmummy powers to control some nearby creatures to disturb the nests of vicious beasts and bring them over.
Unfortunately, there was a limit to what he could control. Otherwise, he might even have been able to win against these people from King George Manor if he could control a huge army of beasts.
As he was helpless to do anything about the situation, He Li couldn't be bothered with Catherine. He had to calm the disturbance first, or else they might not have enough men to hunt down the crown prince's people afterward.
He had thought that he could defeat Sharky, but even the master rank Wei Pingyang had almost died twice. He shivered when he thought about that. He decided to just leave the little monster for a master rank cultivator to deal with.