No Thirteenth Tale for me

I started reading "The Thirteenth Tale" by Diane Setterfield for one of my book clubs.

Actually, I made it to page 78 and I have decided that I don't want to continue reading the book. In the beginning, the premise seemed kind of interesting, but later the abuse, rape, self-mutilation and other evil things described was just too much for me.
I liked the scenes in the book shop and even the mysterious letter and the start of the visit were interesting.

There were a couple of last straws that made me stop reading, as I don't often do that, I finish almost all the books I read. This paragraph may contain spoilers. One was the accumulation of evil things described in the story as mentioned previously. The next one was that Isabelle returned to her abusive brother (and since she didn't know her father had died, to the father who had injured her so viciously just before she left). And she seemed to be very happy about it. I mean, I do know that abuse happens unfortunately, but she chose to go back instead of being happy to escape. That was just too much for me. Third, I have several books that I want to read that I don't want to waste my time with this one. I want to have fun reading a book (even if there are sad or upsetting parts in between) or know that I learned something really important, but this one just went downhill.

I tried...