Tony's sister is Hydra FanFiction

This is the end / hydra!au

This is the end / hydra!au

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Updated
28.04.2025
Fandom
Marvel Cinematic Universe The Avengers (Marvel Movies) Iron Man (Movies)
Characters
Original Female Character(s), Tony Stark, Steve Rogers, Natasha Romanov (Marvel), Clint Barton, Tony Stark/Original Sibling Character, Clint Barton/OFC - Character, Original Stark Character - Character
Tags
Angst Original Character(s) Hurt/Comfort Tony Stark Has a Heart Post-Traumatic Stress Disorder - PTSD Hydra (Marvel) Implied/Referenced Brainwashing Tony Stark Has a Sibling Tony's sister is Hydra The Starks Need Therapy Older Sibling Tony Stark Tony Stark's Sister
Tony Stark's sister has joined the team in the desperate fight to take down Hydra. Little do any of them know, that the woman who is supposed to be helping them, has been helping to take them down from the inside. How will the team react to this betr...