It's the first night and Rainsford sleeps in the tree. He thought he was safe because of all the mazes on his path he made. Zaroff finds him easily anyways, but he decides to let him go to toy with him more.
Rainsfords Malay Man- Trap falls on Zaroff and he actually get wounded. He talks to Rainsford and tells him he would have to try a little harder to win. He goes back to his Plateau and tends to his wounds.
Zaroff brought dogs with him to kill Rainsford. Rainsford is ahead of him however, making a Burmese Tiger Trap. The trap falls on one of Zaroff's dogs and kills it.