ing a studied effort to appear surprised at our intrusion.
Room after room was flung open without finding any one, until we reached the attic, which had been finished off into several rooms. One door was closed. Craig opened it cautiously. It was pitch dark in spite of the broad daylight outside. We entered gingerly.
On the floor lay two dark piles of something. My foot touched one of them. I drew back in horror at the feeling. It was the body of a man.
Kennedy struck a light, and as he bent over in its little circle of radiance, he disclosed a ghastly scene.
"Hari-kiri!" he ejaculated. "They must have got my message to Burke and have seen that the house was surrounded."
The two Japanese servants had committed suicide.
"Wh-what does it all mean?" gasped Mrs. Brainard, who had followed us upstairs with Gladys.
Burke's lip curled slightly and he was about to speak.
"It means," hastened Kennedy, "that you have been double crossed, Mrs. Brainard. Nordheim stole those plans of Captain Shirley's submarine for his Titan Iron Works. Then the Japs stole them from his baggage at the hotel. He thought the secret service had them. The Japs waited here just long enough to try the plans against the Z99 herself—to destroy Captain Shirley's work by his own method of destruction. It was clever, clever. It would make his labours seem like a failure and would discourage others from keeping up the experiments. They had planned to steal
