"Listened," Bell said, coolly. "Of course I had no intention of playing eavesdropper; and I had no idea who the Mr. Steel was who wanted to see Miss Gates. They come day by day, my dear fellow, garbed in the garb of Pall Mall or Petticoat Lane as the case may be, but they all come for money. Sometimes it is a shilling, sometimes £100. But I did not gather from your chat with Miss Gates what your trouble was."
"Perhaps not, but Miss Gates knew perfectly well."
Bell patted his companion, approvingly.
"It is a pleasure to help a lucid-minded man like yourself," he said. "You go straight to the root of the sore and cut all the superfluous matter away. I was deeply interested in the conversation which I overheard just now. You are in great trouble, and that trouble is connected with 219, Brunswick Square—a house where you have never been before."
"My dear chap, I was in that dining-room two nights ago. Nothing will convince me to the—"
"There you are wrong, because I am going to convince you to the contrary. You may smile and shake your head, but before an hour has passed I am going to convince you beyond all question that you were never inside No. 219."
"Brave words," David muttered. "Still, an hour is not a long time to wait."
"No. But you must enlighten me if I am to assist you. I am profoundly interested. You come to the house of my friend on a desperate errand. Miss Gates is a perfect stranger to you, and yet the mere discovery of your identity fills her with the most painful agitation. Therefore, though you have never been in 219 before, you are pretty certain, and I am pretty certain, that Ruth Gates knows a deal about the thing that is touching you. On the contrary, I know nothing on that head. Won't you let me into the secret?"
"I'll tell you part," Steel replied. "And I'll put it pithily. For mere argument we assume that I am selected to assist a damsel in distress who lives at No. 219, Brunswick Square. We will assume that the conversation leading up to the flattering selection took place over the telephone. As a matter of fact, it did take place over the telephone. The thing was involved with so much secrecy that I naturally hesitated. I was offered £1,000 for my services; also I was reminded by my unseen messenger that I was in dire need of that money."
"And were you?"