Ghosts - Marvel The Avengers OC Fanfiction

A mysterious non binary kid falls from the sky. When they wake up, they have no memory of what happened, or how they got here. Tony, Bruce, and the other Avengers try to figure out what exactly happened, and where this mysterious kid came from.... They seem to be hiding something, and Tony especially is determined to figure out what. //This is a Marvel's The Avengers OC fanfiction//