For years foreign and American institutions, educational, scientific, and otherwise, crowded degrees upon him. He didn't care. He started fires with the elaborately formal notifications of these unsought honours and turned again to his work in the small laboratory which was a part of his modest home. There he lived, practically a recluse, his simple wants being attended to by one aged servant, Martha.

This, then, was The Thinking Machine. This last title, The Thinking Machine, perhaps more expressive of the real man than a yard of honorary initials, was coined by Hutchinson Hatch at the time of the scientist's defeat of a chess champion after a single morning's instruction in the game. The Thinking Machine had asserted that logic was inevitable, and that game had proven his assertion. Afterward there had grown up a strange sort of friendship between the crabbed scientist and the reporter. Hatch, to the scientist, represented the great, whirling outside world; to the reporter the scientist was merely a brain—a marvellously keen, penetrating, infallible guide through material muddles far removed from the delicately precise labours of the laboratory.

Now The Thinking Machine sat in a huge chair in his reception-room with long, slender fingers pressed tip to tip and squint eyes turned upward. Hatch was talking, had been talking for more than an hour with infrequent interruptions. In that time he had laid bare the facts as he and the police knew them from the incidents of the masked ball at Seven Oaks to the return of Dollie Meredith.

"Now, Mr. Hatch," asked The Thinking Machine, "just what is known of this second theft of the gold plate?"

"It's simple enough," explained the reporter. "It was plain burglary. Some person entered the Randolph house on Monday night by cutting out a pane of glass and unfastening a window-latch. Whoever it was took the plate and escaped. That's all anyone knows of it."

"Left no clew, of course?"

"No, so far as has been found."

"I presume that, on its return by express, Mr. Randolph ordered the plate placed in the small room as before?"

"Yes."

"He's a fool."