The third book in the most exciting commercial fantasy adventure series since Artemis Fowl. Now with a thrilling new cover look.Half Boy. Half God. ALL Hero.It's not every day you find yourself in combat with a half-lion, half-human.But when you're the son of a Greek God, it happens. And now my friend Annabeth is missing, a Goddess is in chains and only five half-blood heroes can join the quest to defeat the doomsday monster.Oh and guess what. The Oracle has predicted that not all of us will survive . . .RICK RIORDAN IS THE MYTHMASTERThe Greek Gods are alive and kicking - go to www.rickriordanmythmaster.co.uk and see for yourself