It’s nearly time for the moon to rise, and all of nature knows what that means. “The moon’s almost here./ Mama duck drifts to shore,” writes Newbery Medalist MacLachlan in lullaby-like verse. “Ducklings swim after:/ One, two, three, and four.” On the porch of a house, a dog “curls in a ball/ And closes his eyes.” The sky gradually turns from light turquoise to lavender to deep navy, and the moon makes its much-heralded entrance in the final pages, a glowing white ball. Witnessing it all are two figures: a redheaded boy in an old-fashioned nightgown and an a...