Penny (star of the endearing Penny and Her Song) finds a blue marble on a green lawn and pockets it, knowing it probably belongs to someone else. Incrementally, she is consumed by guilt. Her parents, recognizing a problem, encourage her to tell them about what is troubling her, but Penny handles this alone, and the next morning she returns the marble to the spot where it was found. A small, terse--yet humorous--I Can Read drama written on the same reading level as Frog & Toad. For ages 4–7. Available in paperback and hardcover.