The Lightening Theif by Rick Riordan

Percy Jackson is a twelve year old troublemaker. He has gotten expelled in every school that he's been in. His dyslexia and ADHD causes him to be impulsive. His mother, Sally, and him live in Manhattan with his stepfather, "Smelly Gabe". Percy has no knowledge of his mysterious father. Then, one day, Percy discovers Camp Half-Blood, for demigods. At this camp, everybody is half human, half Greek god. Percy discovers that Poseidon, the god of the see, is his father. He has a friend who is a satyr. When Percy and Annabeth, a daughter of Athena, are granted a quest to receive Zeus's stolen lighting bolt, they are forced to fight many monsters to live. This is an amazing book, and I would recommend it to anybody who loves action-packed comedies about mythology.