The Lost Hero By Rick Riordan

The Lost hero is one of the best books I have read. It is about these 3 demigods Jason, Piper and Leo who have been assigned the quest to stop Gaea and bring the roman camp and the Greek camp together after all the wars they have been through. They have to accomplish different problems ranging from battle zombies and avoiding getting killed by the gods. Every single one of the main character has secret, if you want to find out, read the book.