Mary Veronica’s hopes of winning a gold ribbon at Friday’s pet fair soar when she comes upon an egg by the pond—a rotten egg, opines sister Mary Louise, or a dinosaur egg, suggests sister Mary Margaret. It’s a special egg, thinks Mary Veronica, carefully carrying it everywhere in a homemade nest. In spacious, soft-toned colored pencil illustrations, Yalowitz depicts neatly dressed, dot-eyed figures against mere suggestions of background; Mary Veronica’s attachment to the egg takes center stage, and pays off at the end. Children will be peeping (or quacking) in appreciation. (Picture book. 5-7)