Percy Jackson is at Merryweather School and is friends with a boy who is not really a boy, but a Cyclops, called Tyson. In gym class they are attacked by the Lastrygonians who are cannibal giants. Annabeth appears and takes Percy back to Camp Halfblood where Thalia's pine tree is dieing because Luke poisoned it, so monsters are able to get into the camp and destroy everything.
Percy, Annabeth and Tyson go on a quest to find the Golden Fleece on Polythemus' island. They face Circe the witch who now owns a spa, and turns Percy into a guinea pig, Charybides, the Sirens and a few other assorted monsters.
I really like this book. It's very funny and because it's set in modern times it's easy to relate to.
I would recommend this book to anybody who likes fantasy stories with a lot of excitement and monsters.
