“Mechanically I started to walk back to the room where I had left the other three men. They were sitting in silence when I entered, and after a while the stranger got up.
“ ‘A dreadful thing to happen,’ he said, gravely.
“ ‘May I ask, sir,’ I began, ‘how you came to discover it?’
“ ‘Very simply,’ he answered. ‘I was strolling along the road, going back to the village inn where I have been stopping for two or three nights, when I saw the window of the room through the trees. The light was shining out, and I could see someone sitting at the desk. More out of idle curiosity than anything else, I paused for a moment or two, and then something began to arouse my suspicions. The man at the desk seemed so motionless. I thought perhaps he had fainted, or was ill, and after a little hesitation I went in at the gate and looked through the window. To my horror I saw he was dead—and I at once came round to the other room from which the light was shining, and where I found you.’
“ ‘There is a point which may have some bearing on the crime,’ he continued, after a pause. ‘On my way up from the inn a man passed me. He was coming from this direction, and seemed to me to be in a very excited condition. It was his obvious agitation that made me notice him at the time, though in the dim light I couldn’t see his face very clearly. But he was swinging his stick in the air, and muttering to himself. At the moment I didn’t think much about it. But now——’ He shrugged his shoulders slightly. ‘Of course, I may be completely wrong, but I think it is a thing worth mentioning to the police.’
“ ‘Would you know the man again?’ I asked, trying to speak quite normally.
“ ‘Well, he was tall—six feet at least—and broad. And he was clean-shaven.’ He spoke thoughtfully, weighing his words. ‘I might know him again—but I wouldn’t swear to it. One has to be doubly careful if a man’s life is at stake.’
“I turned away abruptly. Jack was tall and broad and clean-shaven. Strive as I would, the deadly suspicion was beginning to grip me that Jack, in a fit of ungovernable passion, had killed the old man. And at such moments, whatever may be the legal aspect of the matter, one’s main idea is how best to help a pal. If Jack had indeed done it, what was the best thing to do?
“I rang the bell, and told the scared-looking maid to bring the whisky and some glasses. Then, with a muttered apology, I left the room. I felt I wanted to talk to Joan about it. I found her dry-eyed and quite composed, though she was evidently holding herself under control with a great effort. And briefly I told her what the stranger had said.
“She heard me out in silence: then she spoke with a quiet assurance that surprised me.