Percy Jackson & the Olympians is a pentalogy of adventure and fiction books written by Rick Riordan. The Lightning Thief is about a twelve-year-old dyslexic boy, Percy Jackson. Once when after returning home from his boarding school, Percy and his mother Sally Jackson, decide to go to the beach in Montauk. After a series of tragedies at Montauk beach, including loss of his mother, Percy finds out that he is a demigod, and son of Poseidon, the God of Sea. He also discovers that he is accused of stealing the weapon of God Zeus, the lightning bolt. Now, to clear his name off this thievery, and to save the world of World War III, he must find the real thief and return the lightning bolt to Zeus. Thus Percy Jackson, along with two companions, Grover Underwood, a satyr and Annabeth Chase, daughter of Athena, start on a journey to the Underworld and the God of death, Hades.