13(Crossover)

An Au where Percy Weasley leaves England after his fight with his family and moves to America where he learns about a new side of the magical/supernatural world that he had no idea about.

His first meeting with that side of his world was when he was almost attacked by a demon but his magic acted on instinct and killed the demon which called the attention of certain two brothers who had been going after that demon.

They weren't completely welcoming to Percy because while Sam had a somewhat good relationship with Rowena, they still weren't big fans of witches/wizards but as Percy reveals them about the other side of the magical world, they got curious about it but also tell Percy about their side of the supernatural world.

Percy grows close to them and he and Castiel get along pretty well when they meet at later date and when Percy least expects it, he finds himself part of their group and fighting to stop the apocalypse from happening.

It is as they have dealt with the last villain(God) and are relaxing after saving Castiel(so no Castiel or Dean dying) that Percy receives a letter from Oliver saying that Voldemort had been defeated but that Fred was really hurt and they couldn't be sure if he would survive.

While Percy had cut ties with his family, he still loved them so he asked Castiel or Jack if they could heal Fred to which they were more then happy to help Percy so the Winchester brothers, Percy, Castiel and Jack made their way to England more specifically Magical Britain.

How anything else goes is up to the writer but if possible, I would like the ship Sam Winchester x Percy Weasley on it but the writer can choose to not use this ship and just make them platonic.