What is the mood of this excerpt from Carl Sandburg's “How the Animals Lost Their Tails and Got Them Back Traveling from Philadelphia to Medicine Hat"? Over to the Philadelphia union depot they went, all sixty-six, half blue foxes, half flongboos. As they pattered pitty-pat, pitty-pat, each with feet and toenails, ears and hair, everything but tails, into the Philadelphia union depot, they had nothing to say.