CHAPTER VIII

"Now that is what actually happened," said The Thinking Machine, after a little while. "How do I know it? Logic, logic, logic! The logical mind can start from any given point and go backward or forward, with equal facility, to a natural conclusion. This is as certain as that two and two make four—not sometimes, but all the time.

"First in this case I had Mr. Hatch's detailed examination of each circumstance. By an inspiration he connected Mr. Herbert and Miss Meredith with the affair and talked to both before the police had any knowledge at all of them. In other words, he reached at a bound what they took days to accomplish. After the second theft he came to me and related the story."

The reporter blushed modestly.

"Mr. Hatch's belief that the thing that had happened to Mr. Herbert and Miss Meredith bore on the theft," resumed the scientist, "was susceptible of confirmation or refutation in only one way, this being so because of Mr. Herbert's silence—due to his loyalty. I saw that. But, before I went further, I saw clearly what had actually happened if I presupposed that there had been some connection. Thus came to me, I may say here, the almost certain knowledge that Miss Meredith had a brother, although I had never heard of him or her."

He paused a little and twiddled his thumbs thoughtfully.

"Suppose you give us just your line of reasoning," ventured Hatch.

"Well, I began with the blood-stains in the automobile to either bring Mr. Herbert into this affair or shut him out," replied the scientist. "You know how I made the blood tests. They showed conclusively that the blood on the cushion was not Mr. Herbert's. Remember, please, that, although I knew Miss Meredith had been in the automobile, I also knew she was not wounded; therefore the blood was that of someone else—the man.

"Now, I knew Mr. Herbert had been wounded—he wouldn't say how. If at home, would he not go to the nearest physician? Probably. I got Doctor Walpole's name from the telephone-book—he being nearest the Herbert home—and sent Mr. Hatch there, where he learned of the wound in front, and of the thirty-two calibre ball. I already knew the police revolvers were thirty-eight calibre; therefore Mr. Herbert was not wounded while in the automobile.