Kero is sicker than he's ever been before, and has been for a while now. It looks like it's time for another trip to the vet. But this time Kero's human won't be bringing him home; it's time for Kero to cross the rainbow bridge! What does this mean? And what will Kero find on the other side of the rainbow bridge?This is the final book in the "Kero's World" series, and tells the story of the saddest and very last chapter in the life of a beloved dog, as he goes to the place where all of us must go eventually.The "Kero's World" stories are all about the adventures of a West Highland White Terrier named Kero; read his stories, and see the world from the point of view of a little white dog.Books in the series:1. Kero Goes Walkies2. Kero Celebrates His Birthday3. Kero Gets Sick4. Kero Celebrates Halloween5. Kero Goes To Town6. Kero Celebrates Christmas7. Kero Crosses The Rainbow Bridge