Bumpy's sister Sadie has left and he doesn't know where she is Join Bumpy and his friends as he discovers the beautiful Rainbow Bridge and learns that when a pet leaves this earth, another wonderful place is waiting. Bumpy's Big Adventure-A Trip to the Rainbow Bridge is a gentle, thoughtful and hope filled book about pet death. It's intent is to bring comfort to people of all ages who have had a beloved pet pass away. The author of the Bumpy's Big Adventure Series donates all profits to benefit animal rescue and rehabilitation.