A-Train Allen by Lesley Younge (Author), Lonnie Ollivierre (Illustrator)

Everyone in the neighborhood knows Allen is the fastest kid around. As soon as school lets out, he's racing through the park, past the library, and down the sidewalks. They call him A-Train because he's practically faster than the subway. ZOOM! But where is Allen off to every afternoon? "Got somewhere to be! Got somewhere to be!" he calls. Race through the city with A-Train and discover what finally gets him to slow down. An Own Voices, Own Stories Grand Prize winner.