Percy Jackson and the Olympians: The Sea of Monsters

This audiobook is by Rick Riordan and is narrated by Jesse Bernstein and in this story Percy and Annabeth come across Tyson and they take him to Camp Half-Blood. Tyson turns out to be Percy’s half-brother and Grover is away looking for Pan.

Percy has a dream about Grover for some reason but when he talks about it, he isn’t given the quest as Carisse gets it instead.

As what she had to do is find and bring back the golden fleece. Meanwhile Percy was made to give his word that he wouldn’t leave Camp Half-Blood.