Help me find this book

I can only barely remember some information about this book so if one of you guys manage to find it then you're a legend my guy

The Book Cover/genre:
- I remember that it had the color green to it
- The book is a horror and mystery

The story:
- The main character is a female
- She moves into her aunt and uncles house? Her cousin also lives there I assume
- The Main character looks through the house and goes up the attic to find a females glove and a hand print???
- I remember that theres a hat shop and I assume she works there
- Her cousin is a b---- and a sexual predator if I remember correctly
- Her cousin is such a pervert he legit tried to undo her corset
- Later in the end we find out that another girl used to live there
- I forgot why she died (its probably becasue of the cousin)
- The girl chopped her hand off and is now haunting the house
- In the end the cousin died becasue the hand strangled him??
- the hand didnt want to hurt the Mc but jjst wanted to get her revenge

You can ask questions below to clarify some things if you think you know which book I'm looking for. I appreciate your help and I apologize for this long messege.