Percy Jackson comes to Hogwarts after given a Quest, that Albus Dumbledore and Chiron have agreed on. He is a teacher for a new subject, Muggle Fighting. Despite nobody knowing he was preparing them for an ultra war, which will unite the DemiGods and Wizard/Witches. Harry Potter is in his fifth year of Hogwarts. Things are at the beginning of the approaching war. He hears about a new subject that every fifth, sixth, and seventh year is required to take. He wonders who the professor is, and more importantly, why they needed it. *Disclaimer I don't own any of the characters. All thanks to Rick R. and J.K. Rowling. *