Aldrich returned his bow to his back and grabbed the tree branch as the second impact shook the tree, even more so than the first. Aldrich tried to think of something but his ideas deserted him.
The next impact didn't come, instead it went quite and Aldrich instantly felt that something wasn't right. Aldrich looked around but he couldn't see the Umvorax under the tree. For a brief moment he thought that it left him alone and ran away.
Aldrich wasn't fooled, he could feel the Umvorax from the opposite direction, where he couldn't see because of the direction of the branch he was hanging on.
It was like he was somehow aware of the general location of the monster even if he couldn't see it. Thanks to his enhanced perception.
Aldrich decided to take this chance to pull himself up and stand on the branch he was holding onto, then he walked along the tranche's length. When he was close enough, with the least amount of noise possible he jumped over to the nearest tree.