A stunning paperback boxed set bringing together the first three volumes in the wildly popular Heroes of Olympus series – a spin-off series from the best-selling Percy Jackson one, and including some of the same characters. Longtime fans will want this collection and so will new readers just diving into the series.

Riordan's sto­rytelling is as polished as ever, brimming with wit, action, and heart" Publishers Weekly

The Lost Hero
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. 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 Neptune
Percy Jackson, son of Poseidon, God of the Sea, has woken from a very deep sleep and 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. Only one thing is certain – Percy's questing days aren't over. He and fellow demigods Frank and Hazel must face the most important quest of all: the Prophecy of Seven.If they fail, it's not just their camp at risk. Percy's old life, the gods, and the entire world might be destroyed . . .

The Mark of Athena
Annabeth felt as if someone had draped a cold washcloth across her neck. She heard that whispering laughter again, as if the presence had followed her from the ship. She looked up at the Argo II. Its massive bronze hull glittered in the sunlight.Part of her wanted to kidnap Percy right now, get on board and get out of here while they still could. She couldn't shake the feeling that something was about to go terribly wrong. She couldn't risk losing Percy again.