The Bobbsey Twins Mystery at School (Bobbsey Twins, 4)

In spite of what Nan and Bert had said about Mrs. Bobbsey being very busy, Flossie and Freddie looked anxiously in the direction of their house as they walked along. But no sight of their mother greeted them. They did see a friend, however, and this was none other than Snap, their new dog, who, with many barks and wags of his fluffy tail, ran out to meet his little masters and mistresses.