Like all of London’s Froggy stories, this one is a charmer, but it lacks the tempo, funny little asides, and sight gags that percolate through his other adventures. Froggy’s latest flap revolves around his participation in a marching-band contest. The story quickly becomes one-note song: “Don’t look left. Don’t look right. And DON’T STOP FOR ANYTHING!” So that is what Froggy and his pals practice: marching. Not much of a witty story can be built upon that foundation, though London strives hard and Remkiewicz’s illustrations keep the atmosphere as endearing as possible. It’s the finale that’s a particular letdown, with the circumstances too obvious and too forced in their cheeriness, and the artwork failing to capture the scant energy of the text. One of the great pleasures of the Froggy stories is their original approach to life’s unavoidable misadventures; another is the comic timing between the illustrations and the incidents being described by the text. Neither one appears with much success—forget about the usual dazzle—in this work. (Picture book. 3-6)