When they return to the mortal world, they send off Clarisse on an airplane to camp alone, and Percy, Annabeth, Grover, and Tyson are kidnapped by Luke. In a duel with him, Percy is nearly killed. He is saved by Chiron, who is proven innocent, and his relatives, the Party Ponies. When they return to camp the Fleece is put on the tree. The Fleece not only revives Thalia's tree, but Thalia too. It turns out that this was actually Kronos's plan, done so that he would have another chance to control the prophecy which governs the future of Olympus and the Olympians.