BC Mambo

BC Mambo is the first book of the Stone Rabbit series.

Summary
Stone Rabbit is a bored little bunny who lives a humdrum existence in the sleepy town of Happy Glades. But all that changes when he discovers a time portal of doom—right under his bathroom rug! Suddenly, Stone Rabbit finds himself on a Jurassic journey in a prehistoric world, facing off against vicious velociraptors, terrifying T. Rexes, and a nefarious neanderthal bent on world conquest. Will our hero be able to save the past and return to the present—or will he become extinct?