This was a sad but heartwarming story. I liked that it was a quick read (just a couple hours this morning), though, because I am not a fan of reading about cruelty to animals or anything sad about animals. Ivan was a great narrator and the characters were all really great. I even managed to feel some sympathy for Mack, even though he wasn't great to his animals. Basically, this just wasn't my kind of story. Well written, just not for me.