How to employ my time until Harley should return I knew not. Common delicacy dictated an avoidance of Val Beverley until she should have recovered from the effect of Inspector Aylesbury’s gross insinuations, and I was curiously disinclined to become involved in the gloomy formalities which ensue upon a crime of violence. Nevertheless, I felt compelled to remain within call, realizing that there might be unpleasant duties which Pedro could not perform, and which must therefore devolve upon Val Beverley. I lighted my pipe and walked out on to the sloping lawn. A gardener was at work with a big syringe, destroying a patch of weeds which had appeared in one corner of the velvet turf. He looked up in a sort of startled way as I passed, bidding me good morning, and then resuming his task. I thought that this man’s activities were symbolic of the way of the world, in whose eternal progression one poor human life counts as nothing. Presently I came in sight of that door which opened into the rhododendron shrubbery, the door by which Colonel Menendez had come out to meet his death. His bedroom was directly above, and as I picked my way through the closely growing bushes, which at an earlier time I had thought to be impassable, I paused in the very shadow of the tower and glanced back and upward. I could see the windows of the little smoke-room in which we had held our last interview with Menendez; and I thought of the shadow which Harley had seen upon the blind. I was unable to disguise from myself the fact that when Inspector Aylesbury should learn of this occurrence, as presently he must do, it would give new vigour to his ridiculous and unpleasant suspicions. I passed on, and considering the matter impartially, found myself faced by the questions--Whose was the shadow which Harley had seen upon the blind? And with what purpose did Colonel Menendez leave the house at midnight? Somnambulism might solve the second riddle, but to the first I could find no answer acceptable to my reason. And now, pursuing my aimless way, I presently came in sight of a gable of the Guest House. I could obtain a glimpse of the hut which had once been Colin Camber’s workroom. The window, through which Paul Harley had stared so intently, possessed sliding panes. These were closed, and a ray of sunlight, striking upon the glass, produced, because of an over-leaning branch which crossed the top of the window, an effect like that of a giant eye glittering evilly through the trees. I could see a constable moving about in the garden. Ever and anon the sun shone upon the buttons of his tunic.