As the Great Northern chugs its way to St. Paul, past fields “stitched together / in brown and yellow patches, / like Grandma’s quilt spread over the hills,” a lone child in her Sunday Best gazes happily out the windows, takes a meal in the dining car (surreptitiously dropping sugar cubes into her wallet as mementos), makes friends with those seated around her when the train is temporarily halted by a snowdrift, then steps off at last, and into her grandmother’s arms. Thompson places the ride in the 1920s or ’30s, depicting passengers and elegant interiors with photorealistic sharpness, then backing off to show the big train steaming its way through towns and over rolling prairie. Despite occasional anxious moments, the generally buoyant tone of this individual odyssey will reassure prospective young travelers, and trainiacs will pore over the period details. (Picture book. 7-9)