Fenn was walking ahead of his chums, looking in the store windows, and taking care that he did not collide with persons in the crowd, and so injure his sore arm. The stout youth saw, just ahead of him, an establishment devoted to the sale of pets of various kinds. There were pigeons, white rats, puppies, gold fish, some monkeys and parrots, and scores of canary birds. As several specimens were on exhibition in the windows quite a crowd was gathered about watching the antics of a pair of monkeys. Fenn, always interested in such things, drew closer, motioning to his chums, who were walking slowly, to join him.