All campers celebrate their victory over Gaia. All but Percy. His friends,his family gone. Percy is alone. Chiron notices this and has a talk with a few friends. They decide to send Percy to a school to teach. Give him time to calm down. But this is no ordinary school........ When Percy arrives at Hogwarts the golden trio are very curious,wondering why such a young person is teaching. They dig deep trying to find all percys secrets. But has their curiosity just brought more trouble? Well it wouldn't be Hogwarts without trouble.

Percy and Annabeth just got back from Tartarus and now they have to go and protect Harry Potter in the wizard war against Voldemort. Percy and Annabeth are 18 and are the only ones going to Hogwarts... for now.

The Giant war is over and Percy Jackson is spent. Finally there's a chance he can be with Annabeth for a while and he eagerly awaits the summer they have planned together. But when Hecate shows up and sends Percy on a new quest, it could be the by far stupidest thing he has ever done. He must be the new teacher at Hogwarts. Harry Potter has been attacked by the Ministry and Dementors. If that wasn't enough he now has a new teacher. But he is like, a 17 year-old kid. Who looks a lot like him. It's Harry's 5th year and he is now a nutter to the wizarding world. So when he sees the kid show up at Number 12 Grimmauld Place, he starts thinking he might actually be mental. The new kid turns out to be a teacher. The teacher of DADA. But Umbridge is still there- as the High Inquisitor. It seems she watches the new teacher-Professor Jackson- a lot more than the others. Something is off about him. And the Golden Trio always tries to find out what.