He's shocked when he finds what's on the bottom.
Run!

He chose to run into the inner forest, since the path he had planned to take was blocked. It was the first time he had ever travelled in that direction. The anaconda was right behind him rapidly following. He knew that he had to keep running because if the giant snake caught up with him, that would mark the end of his life but suddenly, the strangest thing happened. the anaconda stopped running after him.