Y/n Stark, kidnapped by the Red Room finally found after years of captivity. She has lost all memories reminding her of the past, her mind is filled with nothing but static. Y/N Stark was kidnapped by the Red Room years before anyone could find her. At the time, she was still a child. Now, at seventeen/eighteen, she has become someone her family would barely recognise. Years after her disappearance, Tony Stark had another daughter, Morgan, who is now five. Morgan has grown up knowing that she has an older sister, although Tony has never quite known how to explain where she went. Whenever Morgan asks about Y/N, Tony freezes before giving her the same answer: “She’s on a trip, sweetheart. Somewhere very far away. She’ll be back soon.” But Y/N isn’t coming home as the girl he remembers. After years of Red Room conditioning, experimentation and psychological manipulation, Y/N has lost virtually every memory of her former life. Her identity has been dismantled and rebuilt into something almost unrecognisable. She is composed, detached, unusually quiet and seemingly incapable of expressing genuine emotion. She rarely reacts to anything, speaks with an almost mechanical flatness and carries herself with an unsettling indifference, as though someone had removed the ability to feel from her entirely. During a HYDRA operation, Y/N is severely injured and deliberately abandoned by her own people. Authorities arrive shortly afterwards and take her into custody, unaware of her identity or history. Her condition, behaviour and the circumstances surrounding the operation lead them to suspect they’ve apprehended an extremely dangerous individual. The Avengers are eventually summoned. Tony Stark expects to encounter a criminal, perhaps even a mass murderer. Instead, he finds the daughter he buried in his mind years ago. Only she doesn’t recognise him.