Y/n is a 16 year old Avenger. That might sound young for an Avenger, but Y/n isn’t like other girls her age. She’s skilled and trained. A while ago, Fury found her, and The Avengers ended up taking care of her. She grew close to all of them and they became very protective of her. What they didn’t know was that Fury didn’t find her by accident. Hydra had planned it. Y/n was a mole, a sleeper agent for Hydra. And one day on a mission, she betrays the team.