We have found a corner lot, with several lots adjoining, near Prospect Park, which may be obtained for five thousand dollars, half cash. We have no hesitation in recommending the purchase, being convinced, from the tendencies of the market, that the buyer will double his money in a comparatively short time. If you are engaged at other times, come over on Sunday afternoon, and we will show you the property. The house you purchased of us last year is worth fully a thousand dollars more than the price you gave.
"I wonder how much he gave," said Frank to himself.
The letter was signed "Henderson & Co., No. — Fulton street."
Our hero was elated by the discovery he had made, and he sought an interview with Mr. Hartley.
"Have you discovered anything?" asked the merchant, noticing the eager look of his young detective.
Without attaching especial importance to the fact, Frank answered, "I have found out that Mr. Haynes owns a house in Brooklyn."
"Indeed!" said Hartley, quickly. "But," he continued more slowly, "he might buy one with the money saved from his salary."
"He is also thinking of buying some lots near Prospect Park."
"How did you learn this?" asked the merchant, surprised.
"I would rather not tell you," said Frank, who was not quite sure whether Mr. Hartley would sanction his examination of a private letter. "You may be sure that it is true."