best of all greek god's storys and can not be defeated
Percy Jackson and the Olympians (5 Book Series)
By Rick Riordan
From Book 1: Percy Jackson is a good kid, but he can't seem to focus on his schoolwork or control his temper. And lately, being away at boarding school is only getting worse-Percy could have sworn his pre-algebra teacher turned into a monster and tried to kill him.
Binding: Kindle Edition