SOLVED. Adopted girl moves to live with another part of her family, meets cousin, they begin a romance after finding out they were together in a past life. They solve mystery. Old barn or mill tower. [s]

[Jillian]

I read this book about four years ago and remember it seeming pretty old by then, maybe like 5-8 years old, maybe more. I remember a dark blue cover and I think a key on front? Very very dark colored. It was about an adopted girl who has to move to live with some other part of her family for some reason. She meets her cousin, and they start to hang out, he is a guy. For some reason I’m pretty sure they entered a romantic relationship after finding out they were together in a past life. I think she had died, and they reincarnated to be together. They solve the mystery of her death and prevent it from happening again. Pretty sure it was a shop keeper of something, some old woman. A noticeable place I remember was a old barn or mill tower.

[Erika]

Parts of this sounds like How I Live Now by Meg Rosoff
How I Live Now

[Jillian]

Similar, but not the one I am looking for. It’s in the US and there is only one cousin. Thank you though!

[Becca]

Legacy of Lies by Elizabeth Chandler?

[Jillian]

That’s it! Thank you so much!