5 stars. For the story, the style, the idea, the brilliant plot, the narration and the characters. 
 I fell in love with the latter, human and animals, except for the evil ones, which I hated. I felt a bit like a kid, with a lot of passionate reactions, listening to this tale. 
 But... 
 0 stars for the joy the book could bring. I basically cried during the whole ordeal. In my opinion, the author is a sadist: he made me relive some of the worst moments of my life with this novel. Over and over. 
 5 stars, but if you loved an animal with all your heart and lost it, or if you're a sensitive person, prepare yourself for a harsh ride if you want to try this.