The American Zabini.

Rowan Zabini is the long lost twin sister of Blaise Zabini, daughter of Silas and Artemis Zabini. When the Zabini twins were only a year old, they were seperated because their parents thought it was safer for them to not know each other until the time was right. Now, 17 years later, is where her story starts.

When it is finally time for the twins and their parents to be reunited after the fall of Lord Voldemort. Where Rowan learns her whole life has been a lie. Where she finally meets her brother she didn't know she had. Where she starts to fall for his best friend. When she tries to run away from her troubled past.

But you can never really run away from your past can you?
***
Fred and Snape are still alive.
TW: panic attacks, self-harm, suicidal thoughts and actions, sexual assault and harassment, sexual scenes, vulgar language, drugs and alcohol use, kidnapping, torture, and violent scenes and actions.

If any of these things trigger you, please do not read this book.