Very cute and emotional middle grade fiction! I only listened to this book because Brian Holden was a narrator (#Starkid4Life) but I really enjoyed it. The emotional depth was astounding and I think it offers great lessons about how not everything can be happy in life while also promoting a very positive environmental message. The relationships are also surprisingly in-depth for a middle grade fiction and it reads incredibly mature (in a good way) for the age group. The ending wraps up a bit quickly, but it fits well for the story.