Nexus

A nexus is a connection between two groups. Percy is a demigod son of Poseidon, but he's also a wizard. Throughout his time at Camp Half Blood and Hogwarts, he has kept each half of his life secret from the other. But when a nasty break up with Annabeth requires Percy to turn to the Wizarding World for comfort, he discovers that a lot has happened during the year he was questing against Gaea. His best friend's oldest enemy has risen again. Rejoining his friends, the Golden Quartet, at Hogwarts turns out not to be the reprieve Percy was searching for. But he can't abandon them now when they need him most.