Sounds like one of the best Heart tugging stories

The Forgotten Sister sounds like one of those heart tugging stories, that always makes the best kind of books. With Cassie and Erin sisters, but Cassie is adopted. I'm left wondering how Cassie's adoption is far more complicated than she ever thought. The cover is fantastic with two girls on the front. One sister looks prompt and the other looks like she is in the shadow of her sister. I just know I would enjoy this book.