Chermpf by William S. Russell III

Everyone should have a name; with that thought Gracie Fisher steps into her backyard on a moonlit summer night. Leaving her sleeping parents behind, following her nervous cat Roscoe and a kitten harboring an ancient secret, she embarks on an adventure leading far beyond her fathers vegetable garden, to a domed forest-city tethered to the Moon. There, she faces a terrible danger from the prehistoric past and a grave threat to all humanity.