Answer:
Just when he started to feel like part of the community, "I'd been separated out as if I had some rare disease" (9.4).
Luke begins to train Percy one-on-one, pushing him harder and harder. He tells Percy that he's going to need all the training he can get if he's going to protect himself from monsters like the hell-hound.
Percy discovers that he is a wanted criminal in the mortal world, accused of his mother's disappearance. Somebody who doesn't like Percy posts an article about this on his cabin door.
Percy has another vivid dream.
He dreams of two wrestler-type men fighting each other on a beach. The city in the background doesn't look like New York City.
The wrestlers wear ancient Greek-style clothes.
One of the wrestlers shouts, "Give it back! Give it back!"
Percy tries to stop them from fighting, but he can't move or even speak in his dream.
hope it helps