The Other Stark (Avengers Fanfic)
12 parts Complete What if Tony Stark had a younger sister? What if she was just like him? The sarcasm, the intelligence, not taking anyone seriously, the need of attention.
When Loki steals the Tesseract, she has the chance to help the world's mightiest heroes to locate it, but no one knows -except her brother- she has more abilities than that.