"Leo," said the doctor, as he was about to depart, "your sister seems to be a very sensitive young lady. I wanted to ask her some questions; but I did not feel quite equal to it. I will ask them of you; but I wish you to understand that I do so as your friend."

The good physician then inquired into the circumstances of the poor barber. Leo told him the exact truth, but assured him the family were in no need of assistance, and did not feel like accepting charity. Modestly, and with much enthusiasm, he then stated in what manner he intended to support the family.

"Certainly there are plenty of people who would be glad to have some of your beautiful little pets, especially in these elegant houses you make," added the physician. "I would take one myself if I had time to attend to them." The doctor was a bachelor.

"I have no doubt I can sell them, sir."

"I hope you will not take it amiss if I mention the fact among my friends and patients that you have them for sale," added Dr. Fisher.

"No, sir; I'm sure I should not! I should be very much obliged to you."

"Then I will recommend your wares to those who are able to buy them; and I trust you will drive a large trade in the mouse business."

The doctor went away; and Leo, encouraged by the promise of the powerful influence of his visitor, resumed his work. At twelve o'clock, when Maggie called him to dinner, he had made considerable progress in the four houses in process of construction. When he had finished his noonday meal, he went out and found Tom Casey, an Irish boy whom he had befriended in various ways. Tom agreed to go with him to State Street; and the new "Hotel des Mice"—as it was labelled in large letters on the front gable—was loaded upon a little wagon of Leo's build, and they started for the busy street, attended by a crowd of curious youngsters, of both sexes and of all conditions.

LEO STARTS FOR STATE STREET.—Page 152.