The “Percy Jackson & The Olympians” series follows the adventures of a teenager who discovers he is a demigod, the son of the Greek god Poseidon. Throughout the books, Percy and his friends from Camp Half-Blood must complete dangerous quests and fight ancient monsters to protect the world from the rising threat of the Titan Kronos. The series is famous for modernizing Greek mythology, placing the throne of the Gods atop the Empire State Building and blending high-stakes action with humor and coming-of-age themes.