PreS-K— In an all but wordless board book in three colors (black, blue, orange), one duck becomes separated from three others and valiantly tries to find them. The duck calls "Ducks?" but finds only "No Ducks!" and feathers (from a pillow fight), squawks from brass horns, and discouragement. A lost dog sign inspires this duck to make a similar sign, and the simplicity of the solution and the reunion will reassure any toddler who has ever stepped into the wrong aisle at a grocery store. Here is a delightful economy of form, accompanied by a powerful impact emotionally. VERDICT Could it be a classic? Children will be shouting "Ducks!" and "No Ducks!" at story hours, but it's all in a terrific cause.