Sea of Monsters

Riordan, Rick. 2006. The Sea of Monsters.

The Sea of Monsters opens a year after the closing events of Lightning Thief. Percy Jackson has spent an entire school year keeping his big secret--that he's a half-blood, the son of Poseidon. It's been a rather busy school year as well. His only friend, Tyson, is a 'big' and somewhat dorky homeless kid. Still Percy is glad that it is the last day of school and that he'll soon be on his way to Camp Halfblood. If only he could shake off these weird dreams about his best friend Grover where he's wearing a wedding dress. Talk about strange! But as a nearly lethal game of dodge ball proves, strange things are happening everywhere. Camp Halfblood is in danger! Their protective tree has been poisoned. If a cure cannot be found, there will be no safe place on earth for these half-bloods to live, to train, to rest. Could the poisoned tree be in anyway connected with those weird dreams? Is Grover trying to tell him something? Percy and his friends will have to get to the bottom of this if they want to save their summer refuge....and quite possibly the world as they know it.