"Yes, but not without some reason," Quarles went on. "Let's go back to the Grange Park burglaries for a moment, and suppose that a gang of expert thieves under the name of Crosland took Clarence Lodge. An invalid mother, son and daughter so called, butler, servants—a most respectable family apparently, in the midst of people worth plundering, able by friendly intercourse to collect the necessary information and plan their raids. Bush is the outside representative of the firm, so to speak, and the nephew who travels abroad occasionally sees to the selling of the spoil. It was the plot of a master mind—the old lady's, which has entirely beaten us until they quarrel between themselves. Now what do you think of my theory?"

"It takes me back to Grange Park without unnecessary delay," I said, getting up quickly.

"I thought it would. You have got the men waiting for you there, and I should raid the house forthwith. But caution, Wigan. I don't think they have any suspicion of Morrison, but the moment they tumble to your intentions they'll show fight, and probably put up a hot one. And don't forget the nephew in Paris. Take him, too."

The raid upon Clarence Lodge took place that evening, and was so managed that the servants and the chauffeur were taken before Crosland and his sister, who proved to be no relation as Quarles had surmised, were aware of the fact. Faced with the inevitable they made no fight at all, but the old lady was made of entirely different metal. She barricaded herself in her room, and swore to shoot the first man who forced the door. She had the satisfaction of wounding me slightly in the shoulder, and then before we could stop her she had turned the weapon upon herself and shot herself through the head.

The nephew was taken in Paris, and with the rest of the gang was sent to penal servitude. The evidence at the trial proved Quarles's theory to be very much as the tragedy had happened. The dead man was Bush, and it was his threat to give the burglaries away unless he had a larger share of the spoil than had been assigned to him which made the old lady shoot him in an ungovernable fit of rage.

"A master mind, Wigan," Quarles remarked, "and it is just as well not to have her as a neighbor. Your wound is not likely to put off your wedding?"

"No."

"A little better aim and she would have put it off altogether."

"Don't be so horrible," said Zena.

"A fact, my dear. Murray has been very keen about getting: hold of facts in this case, so I mention one. The Grange Park burglaries beat me because there was no clue to build on, but with a dead body—well, it really wasn't very difficult, was it?"