Percy Jackson is twelve years old, has been kicked out of every school he has ever attended, and has just found out that his father is Poseidon. Camp Half-Blood, a training ground for the children of Greek gods hidden in Long Island, is both a refuge and the beginning of something much larger. Over five books Percy grows from a confused kid who can breathe underwater to the demigod at the centre of a prophecy that will determine the fate of Olympus. The original series that launched the Riordanverse, built around a voice so distinct and a mythology so confidently reimagined that it created its own genre of modern mythology fiction.