Ryder John is a son of Poseidon. His older step-brother is the great Percy Jackson. Ryder defends his older step brother,whom he's never met. According to the older campers,Percy took kids hostage. He left because Annabeth cheated on him with Jake,son of Zeus. Ryder has a mini army of 11,not including himself. They all have different parents. When history seems to repeat itself,who will Ryder and his friends meet?