All 8-year old Coby wants is a pet he can play fetch with. But, what if his pet WAS the ball...and could fetch itself? Coby continues his search for the coolest pet in the world in the 4th book in the Petimals series. Meanwhile, in the dark and scary corners of the basement, Zack searches for the items he needs to speed up his turtles and prove to Coby just how awesome they really are. Will Coby's new pet be just the secret weapon he's been looking for at the bowling alley? Will Zack's "Speed Turtles" experiment be a success? Not even bowling alley shoe spray can protect everyone from the collision that's coming. FROGADILLO - With the armor and rolling power of an armadillo and the hopping power of a frog, the game of fetch will never be the same!