Hello. You did not enter the text to which this question refers, which makes it impossible for this question to be answered. However, I will try to help you as best I can.
To answer this question, you need to read the text that this question refers to. When doing this reading, you need to identify the moment when Percy is in the place to which the question refers. In this case, you need to identify the thoughts Percy has on arriving at this location and the people who are there. This thought can be presented in the narration, or in the dialogues in which Percy is inserted, the important thing is that you understand his reaction and what he thinks after arriving at this place.