“I don’t mean impossible in that sense. But if the man wanted to escape, he’d never bolt back into the house.”

“Safest place for him, Mr. Lomax.”

“But Mr. O’Rourke’s door was still locked on the inside when we came to him.”

“And how did you get to him? Through Sir Stanley’s room. That’s the way our man went. Lady Eileen tells me she saw the door knob of Mr. O’Rourke’s room move. That was when our friend was up there the first time. I suspect the key was under Mr. O’Rourke’s pillow. But his exit is clear enough the second time⁠—through the communicating door and through Sir Stanley’s room, which, of course, was empty. Like everyone else, Sir Stanley is rushing downstairs to the library. Our man’s got a clear course.”