The Lightning Thief

Author : Riordan, Rick

ISBN : 0786838655

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Percy Jackson could have sworn his pre-algebra teacher turned into a monster and tried to kill him. When Percy's mom finds out, she knows it's time that he knew the truth about where he came from, and that he go to the one place he'll be safe. She sends Percy to Camp Half-Blood, a summer camp for demigods, where he will learn he is the son of one of the Greek gods, and set out on a quest across the United States to reach the gates of the Underworld (located in Hollywood!) and prevent a catastrophic war between the gods. (sequels: The Sea of Monsters, Titan’s Curse, etc)