Mouseheart is an excellent book and I couldn’t put it down. I cannot wait for the second book. Lisa Fiedler created a world that is believable with an amount of fantasy which I loved. Hopper is a mouse that is brave and unselfish in every way, and Pinky, his sister, is foolhardy and reckless. I would recommend this book for ages 9 and up because there are some bloody descriptions. For the most part it is a thrilling book. I think that everyone who reads this book will like it. It will keep your attention and not let go!