Fem! Harry. Seven year old Holly Potter is thrilled when the Dursleys' are forced to bring her along on Dudley's birthday trip to California. During a trip to the Stark Expo, Holly gets lost among the sea of people only to run into billionaire Tony Stark.
Crossover - Harry Potter & Avengers - Rated: T - English - Family/Hurt/Comfort - Chapters: 25 - Words: 33,410 - Reviews: 697 - Favs: 2,500 - Follows: 2,882 - Updated: 12/16/2016 - Published: 11/4/2015 - Harry P., Iron Man/Tony S., Pepper P. - Complete