I haven't come across such a fanfiction. Maybe you could search on some dedicated fanfiction platforms to see if it exists.
I'm not sure if there is one. But you could try using specific search terms related to Harry Potter, Foy, and Avengers on popular fanfiction websites to see if you get any results.
Well, you could find fanfictions where their twin dynamic leads to unique challenges and bonds within the Hogwarts setting. Or perhaps ones that delve into their shared destiny and how it changes the course of the original story.
The fanfiction might explore how the presence of the twin changes the dynamics at Hogwarts and their interactions with other characters. Maybe they play a crucial role in defeating Voldemort that Harry couldn't have done alone.
In this fanfiction, usually one of the twins is believed to have died at birth but actually survived and faces various adventures and challenges in the wizarding world.
In some fanfictions, the twin boy who lived might have unique magical abilities or face different challenges compared to Harry. It could lead to an alternate storyline within the Harry Potter universe.
It could be a story where the twin of Harry Potter also survives Voldemort's attack and has his own adventures and challenges in the wizarding world.
Maybe they team up to face magical challenges or uncover hidden secrets in the wizarding world. Their relationship could evolve and have a significant impact on the story.
It could be a story exploring their sibling relationship and adventures in the magical world. Maybe it focuses on Harry protecting and guiding his sister through various challenges.
It could be a character whose fate was changed in the fanfiction compared to the original book. Maybe it's a minor character who was supposed to die but didn't.
It could be. Fanfiction comes in all kinds of variations and themes. Some might envision Harry Potter in such a way.
Well, you can find fanfictions where Harry, as the older brother, protects and guides his younger sibling. Or ones where their relationship is complicated and full of ups and downs.