Heroes of Olympus Graphic Novels 3 Books Collection Set by Rick Riordan (The Lost Hero, The Son Of Neptune, The Mark of Athena)

The Lost HeroOLD ENEMIES AWAKEN AS CAMP HALF-BLOOD'S NEW ARRIVALS PREPARE FOR WARWhen 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. But rumours of a terrible curse - and a missing hero - are flying around camp. It seems Jason, Piper and Leo are the chosen ones to embark on a terrifying new quest, which they must complete by the winter solstice. In just four days time. Can the trio succeed on this deadly mission - and what must they sacrifice in order to survive?The Son Of NeptunePercy Jackson, son of Poseidon, has come face to face with two snake-haired ladies who refuse to die.But they're the least of his problems. Because Percy finds himself at a camp for half-bloods, which doesn't ring any bells for him. There's just one name he remembers from his past. Annabeth.One