In this ghost swamp, a creature with a domain was not a good thing for ordinary trial-takers. It might even wipe out all the trial-takers who came in.
However, Jerry did not mind. He even wanted to see these creatures with a domain, and this might let him know the secret of Harris' domain.
If Jerry could know the secret, he might have a chance to know the method to open the fourth level of the domain.
As for the danger, Jerry never worried about it because, on the way here, he had already inquired about it.
The person ranked first on the stone tablet of the second level of the endless tower, which was Stobeck. No matter what kind of danger he faced in the maze, even if he couldn't defeat his opponent, he would be able to leave in the end.
Moreover, Jerry also knew that that guy had successfully cleared the ghost swamp.