The doctor walked into the study, and again locked the door of that.

Pulling down the blinds, he turned up the gas to its full force and sat down by a table, motioning the newspaper man to a seat on the other side.
"Now," he said calmly to Stratton, "the reason I did not resent your unwarrantable insult is this: You are conscientiously trying to get at the root of this mystery.

So am I.Your reason is that you wish to score a victory for your paper.

My motive is entirely different, but our object is exactly the same.

Now, by some strange combination of circumstances you have come to the conclusion that I committed the crime.