Percy Jackson and the Olympians #1: The Lightning Thief

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. Soon a mystery unfolds and together with his friends - one a satyr and the other the demigod daughter of Athena - Percy sets out on a quest across the United States to reach the gates of the Underworld (located in a recording studio in Hollywood) and prevent a catastrophic war between the gods.