Join the Heroes of Olympus - Percy Jackson and friends - for an adventure like no other. When Jason, Piper and Leo crash-land at Camp Half-Blood, they have no idea what to expect. Apparently this is the only safe place for children of the Greek Gods . . . Despite the monsters roaming the woods and demigods practising archery with flaming arrows and explosives - some things just have to be taken on trust. But now rumours of a terrible curse - and a missing hero - are flying around camp. And it seems Jason, Piper and Leo are the chosen ones to embark on a terrifying new quest And when Percy Jackson wakes up with no memory of his past, it's clear things are only just beginning . . . Heroes of Olympus: The Complete Series includes all three novels in the incredible series from Rick Riordan: The Lost Hero, The Son of Neptune, The Mark of Athena, The House of Hades and The Blood of Olympus.