“How many cats / are here to play? / Zero, zilch. / None today.” The sad golden lab in the picture window is not alone for long, though; one cat enters by the cat flap. He’s followed by another. Soon they are arriving by twos and threes. Twenty cats arrive to play with yarn and cause kitty havoc around the house. “Then five tired cats leave the scene. / How many cats are left? / Fifteen. / Fifteen kitties sprint and spree, / in five galloping groups of three.” They leave by fours and threes and twos…until only the dog and a great mess remain. Eley paints exuberant bundles of fun that dance and leap across the pages of Thompson’s joyous and slyly math-infused counting tale. They hide in drawers of cotton balls. They ride skateboards, and they wiggle through strands of yarn like four-footed ribbon dancers begging to be counted. Sure to be a call-and-response crowd-pleaser at any kitty-cat storytime. (Picture book. 3-7)