Cavemen compare rocks, try to top each other, finally invent fun game…it’s salutary to see an escalating conflict resolved in an amicable, even creative way, and a bit of wordless byplay in which a set of forest creatures invent a wheeled scooter with the discarded game pieces adds a droll finish. The diagrams the animals draw in the dirt make an especially funny counterpoint to the dialogue. With ingenuity and good will, sticks and stones can be turned to better uses than breaking bones—but the tale demands readers who are patient with cavespeak.
—Kirkus Reviews