As Maurice got up from his chair, his frail wrist knocked over the walking-stick that was propped against the arm, and its heavy gold head struck the floor with a crash. That crash had its echo in Masters' voice.

"Now, sir, let's stop this fiddling and evading and being so neat and slippery. Let's talk like men and answer questions; do you hear me?" He struck the edge of the table. "It would be no trouble at all for me to get a warrant to take that beloved little shack of yours apart piece by piece. And, so help me, I'll get mad enough to do it before very long! Now, then, will you or won't you give assistance in this thing?"

"Surely-ah-surely I had already promised to do so?"

In the long pause afterwards, that pause when Bennett knew that the chief inspector had got his man, John Bohun walked away from the window out of which he had been staring. John Bohun's face (when both he and his brother were frightened) had a curious resemblance to Maurice's which you would never ordinarily have noticed. It was as though Masters held two men in play, like a fencer who conceals his skill under clumsiness.

"Your-your subordinate," said John, and pointed behind him. "He's out there on the lawn. he's examining

.. What's he doing?"

"Only making measurements of your tracks in the snow, sir. That doesn't bother you, does it? Won't you sit down, gentlemen; both of you?… There, that's better."

It was not better. John's face had gone white.

"An attempt was made on Miss Tait's life last night before the time she was smashed over the head. Somebody tried, I think," Masters went on, turning to Maurice, "to throw her downstairs. Who was it?"

"I do not know."