The Avengers team. Fury, Maria, Tony, Steve, bucky, Sam, Wanda, Natasha, Rodney, vision, Peter and... Y/N Potter... But no one knows Y/N's past.

Y/N is from Hogwarts, graduated and even stays in contact with the professors, but no one on the team knows. Y/N is a black magic witch, even a witch with a wand... Y/N is dating bucky barnes.

Then Draco calls Y/N, needing her help.