This was a wonderful second book for the Percy Jackson series. I love the author, Rick Riordan, because he manages to entertain you with hilarious humor while educating you on mythology at the same time, a very hard feat to accomplish. In this book Percy goes on another quest (obviously) but this time he has some different companions with him, including Annabeth , his newfound half-brother Tyson, and Clarisse, much to Percy's annoyance. This time, however, they are rescuing Grover, who has been on his own quest to find Pan. Percy and his companions are also trying to find a very important magical object that could save Camp Half-Blood after what Luke, who recently betrayed Percy and the camp, did to Thalia's tree that protects the magical borders. Rick Riordan once again has written an amazing book that I could not put down. I would recommend this to anyone who likes humor and mythology, and who doesn't like that?