The Lost Prince of Olympus

Harry Potter had always known he was different.
His parents never looked enough like him, his powers could never be passed off as magic, and his life could never be his own.
He knew there was something wrong, something abnormal, but every time he got close to the answer, something would stop him. He gave up figuring out whether it was his luck or his fate a long time ago.
So he had resigned himself to yet another summer alone, cooped up in the Dursley's surviving on what little scraps he could find.
He hadn't expected to be chased by some mythical creature on the train back. He hadn't expected to be taken to some camp, lead by a half goat. He hadn't expected to find 3 dads when he was only looking for one. He hadn't expected to spend the next half of his year participating in the Triwizard Tournament with Gods living in his school.