Sauntering Violently Downwards (слэш)

Mere weeks after Tony Stark announces to the world that he's Iron Man, a bloodied, broken blue alien falls through the ceiling of his Malibu mansion, bringing no end of problems with him. Tony finds himself standing between a traumatized and slowly recuperating god and SHIELD's pointed interest in extra-world affairs. Meanwhile, Dr. Erik Selvig fosters a surprisingly heartfelt relationship with his missing friend's younger brother, and Ivan Vanko, the USA government, and Justin Hammer enact plans to pull Tony Stark's life down around his ears.
Loki, bereft of his powers, his family, his home, with his health and sanity hanging on by a thread, struggles through acceptance of the self while trying to save Tony from his own destructive tendencies—and the palladium slowly killing him.