When an ant walking east, “tickety-tack,” meets a train heading west, clickety-clack,” switchman Jack tries to head off the impending smack. Pamintuan illustrates Prince’s consonantal verse with sunny, smoothly finished ground-level scenes featuring a Disneyesque ant with white gloves and large human eyes, strolling along oblivious both to the huge locomotive roaring up and portly, blue-collar Jack’s struggles to switch the track. But then, at the last microsecond, the ant spots Jack’s nearby sack of snacks and hops to safety. Of like-sounding outings there is no lack (see, for instance, Rob and Amy Spence’s Clickety Clack, illustrated by Margaret Spengler, 1999), but there’s enough melodrama here to keep readers coming back. (Picture book. 6-8)