He handed Mr. Annister a letter to this effect written by Mr. Bradner, and properly executed before a notary public. The rascally agent knew the signature of Mr. Bradner only too well. But he was not going to give up so easily. "Any one can write a letter, and forge a signature," he said. "Then you think I forged my father's name?" and a dangerous look came into Roy's eyes. It was a look such as that when he stopped the runaway horse. "I don't care to have any further conversation with you," said Mr. Annister, sneeringly. "I do not recognize your authority. How do I know you are Roy Bradner? You will have to bring me better proof than this. Besides, even if you are who you say you are, that does not say you understand this renting business. It is very complicated. There are many charges I have to meet which makes the amounts received for rent much less than you have figured. Besides, the property is in bad shape, it needs repairs, and it is going down in value." "You said a little while ago that it was increasing." The agent started. He saw he had made a mistake. "Oh, well," he said impatiently. "You are only a boy; you can't understand it." "I may be only a boy, but I think I understand what is going on, and that is that you are cheating my father and me. I was in the building to-day. It is in excellent repair." "Don't you dare accuse me of cheating!" exclaimed Mr. Annister, but his tone was not as blustering as it had been. "I believe that is the truth." "What do you intend to do?" inquired the agent, as he saw that Roy was firm. "Not that it makes any difference to me, for I shall communicate with your father, but I do not want you to come here and annoy me." He was beginning to be afraid of what Roy might disclose. "I intend to make you return the money you have unlawfully retained. I believe it is called embezzling, and is a criminal offense. But I will give you a little time. I shall call here a week from to-day. If, by that time, you do not have what I consider a proper sum ready to send to my father I shall consult with the police." "Pooh! The police will never interfere. This is a civil matter--not criminal." "I think it is criminal. But I will wait one week. In the meanwhile I shall write to my father and see what he advises me to do. But I shall report all the facts in the case." "Get out of my office!" exclaimed the now angry and frightened real estate agent. "I believe you are an impostor. If you annoy me again I shall have you arrested!" [Illustration: "Get out of my office!"] "I'll leave your office, because I have finished my business with you, and not because I am afraid of arrest," answered Roy coolly. "You know I am not an impostor. I can prove who I am. I shall call on you again in a week," and he went out in time to surprise the office boy with his ear at the key hole, listening to what was going on.