Rick Riordan has now sold an incredible 55 million copies of his books worldwide
This is Book 1 in the Heroes of Olympus Series. See all Heroes of Olympus books here.
See More Adventure stories
Rick Riordan, dubbed 'storyteller of the gods' by Publishers Weekly, is the author of five New York Times number-one bestselling book series with millions of copies sold throughout the world: Percy Jackson, the Heroes of Olympus and the Trials of Apollo, based on Greek and Roman mythology; the Kane Chronicles, based on Egyptian mythology; and Magnus Chase, bMore about Rick Riordan