CARTER AND SADIE KANE, descendants of the magical House of Life, are in pretty big trouble.
Despite their bravest efforts, Apophis, the giant snake of Chaos, is still threatening to plunge the world into eternal darkness. Now the Kanes must do something no magician has ever managed - defeat Apophis himself. No pressure there then.
Battling against the forces of Chaos, their only hope is an ancient spell - but the magic has been lost for a millennia. Will they find the serpent's shadow, or will they be led to their deaths in the depths of the Underworld?
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, based on Norse mythology. Percy Jackson and the Lightning Thief, Rick's first novel featuring the heroic young demigod, won the Red House Children's Book Award and is now a blockbuster film franchise starring Logan Lerman. To learn more about Rick and his books, you can visit him at www.rickriordan.co.uk or follow him on Twitter @camphalfblood.