I'm usually prone to staying clear of dog books only because in literature, it never ends well. This book was no exception. 
 The whole story is told from Enzo's point of view. Enzo, who despite the book cover portrays as a golden retriever is a mutt who is loyal to his owner Dennis. Dennis is a car racer who is on the cusp of making it big. Enzo is a fan of high speed and is exhilarated on the one day that Dennis takes him to his job and lets him ride with him. Eventually the fun ends and the book only gets sadder and sadder. It gets a little melodramatic as well, but I found the way the author played out all these human emotions through a dogs perspective was done beautifully. Despite the decline to sorrow, this book does end on a positive note, so at least that. 
 I loved this book and yeah I cried, but it was such a beautiful book that I was okay with every tear it brought.