Percy Jackson & Heroes of the Olympus by Rick Riordan
Percy Jackson
Percy Jackson was never exactly normal. Not even after he strands in a camp for Greek demi-gods – because the Greek pantheon never exactly disappeared. They just moved with the heart of civilisation and adapted to the new cultures – but that didn't stop them from getting children. But Percy's a really special snow flake: Because the Big 3, Zeus, Poseidon and Hades, swore to never again have children with humans after a prophecy revealed that the sixteenth birthday of one of their children would make history repeat itself: The war between gods and titans would start again… And, since Percy's father is the son of the god of the sea, he's just in the middle of it.
Heroes of the Olympus
When the gods managed to overthrow the titans, Gaia woke up and gave birth to the giants, one to kill every Olympian god, just because she was so angry. And a giant can only be killed if a god and a demi-god work together… at least that's what the legends say. And all the legends are true – and history always repeats itself. But the Olympus is cut off, no messages from the gods – ever. The only way for the demi-gods to prove Zeus that they are worthy of his attention would be to unite the Greek and Roman demi-gods… which is next to impossible, since any contact between the camps ultimately leads to a civil war. So Hera's plan is just as dangerous as the giant's threat. The only chance of peace and the civilisation's survival are the seven most powerful demi-gods who all lost more than they could bear: the Cursed her life, the Wise her love, the Mediator her dad, the Mechanic his mother… and the Gifted parts of his life, since the piece of firewood that's bound to his existence has burned already. Jason lost his memories – and Percy Jackson has disappeared without trace…