theft, but lay in his concealment—and a pretty bad time he must have had of it—till night. Probably his nerve was not good enough for anything more than simple flight. When all was quiet, he left the rooms and shut the door behind him. Then he lurked about corridors and basements till morning, and when the doors were opened, slipped out unobserved. That's all. It's pretty obvious, once you know about Hachiman's interior."
"And how did you find out?"
"When you left me here I considered the thing. I put aside all suspicions of motive, the Japanese and his sword and the rest of it, and addressed myself to the bare facts. Somebody had been in these rooms when Mr. Deacon came back, and that somebody had murdered him. The first thing was to find how this person came, and where he came from. At first, of course, one thought of the bedroom window, as the police had done. But reflection proved this unlikely. Mr. Deacon had entered his front door, was inside a few seconds, and then was murdered close by the figure of Hachiman. Now if anybody had entered by the window for purposes of robbery, his impulse on
