Stolen by Vivian Vande Velde

The book Stolen begins with a young girl later called Isabelle running through the woods with no memory of who she is or why she's running. When she realizes that she can't remember she stops and ends up treed by a pack of dogs and gets hurt. The man who owns the dogs calls them off and decides to take her home and care for her. Throughout the book Isabelle tries to find out who she is, all the while dealing with a woman who believes Isabelle to be her daughter, tales of a witch who might have stolen her when she was but a baby, and a could-be sister who wants nothing to do with her. Stolen is a book that any age can enjoy although it is primarily focused on young teens.