Penny and Hattie are sisters who were orphaned at a young age. Elder sister Penny always felt she had to take care of Hattie. Penny married Buddy thinking this would be her new life. Little did she know, her life would never be the same? Buddy turned into a maniac, controlling where Penny could and couldn't go. And whenever he was drunk, he became physical with her.

Penny and Hattie eventually came up with a plan to get Penny out of this marriage, but their actions would haunt them for the rest of their lives... Years later, a young man comes into both of their lives. Jameson was a teacher at the same school that Penny worked at, and quickly becomes friends with both sisters, but soon falls in love with Hattie. They get married and want nothing more than to start a family, but after a few years of trying, Hattie can't seem to get pregnant.

With their past looming over them, Hattie and Penny are at odds. And when Hattie asks a huge favor of Penny, Penny is reluctant to help her sister. As time goes on, will these sisters ever be able to trust one another again?

Laurie Petrou writes a great story about family. Two sisters as close as they could be growing up become almost enemies. SISTER OF MINE is full of different twist and turns. Who is really the good sister and who is the bad sister? I have to say I didn't expect the ending at all. In my head, I saw this book ending completely different. However, Petrou's ending was much better. So with the cold season coming upon us, pick up this book; you will really like it.