Again the appearance of this book took me by surprise but I picked up the hardcover copy when I saw it. This was an unexpected book. As the title suggests, Becky Bloomwood is not an only child like she (and we) thought! I really thought the next book would continue the saga of Becky and Luke now that they are married but not quite on the front burner in this book. The book follows the aftermath of the introduction of this unknown sister and the relationship between the two girls.
This book was my least favorite of the series. It just seemed random and the least fun. Admittedly, I do read this book a lot just because it gives you a different perspective on Becky. Actually, it really reinforces how insecure she is. If you could borrow this book from the library, I would recommend that.