I read on steadily till, from the gloomy shadows of the kitchen, came the hoarse sound of the clock striking nine. How loud the strokes sounded! They were like blows of a big hammer. I closed one book and opened another, feeling that I was just warming up to my work.

This, however, did not last long. I presently found that I was reading the same paragraphs over twice, simple paragraphs that did not require such effort. Then I noticed that my mind began to wander to other things, and the effort to recall my thoughts became harder with each digression. Concentration was growing momentarily more difficult. Presently I discovered that I had turned over two pages instead of one, and had not noticed my mistake until I was well down the page. This was becoming serious. What was the disturbing influence? It could not be physical fatigue. On the contrary, my mind was unusually alert, and in a more receptive condition than usual. I made a new and determined effort to read, and for a short time succeeded in giving my whole attention to my subject. But in a very few moments again I found myself leaning back in my chair, staring vacantly into space.

Something was evidently at work in my sub-consciousness. There was something I had neglected to do. Perhaps the kitchen door and windows were not fastened. I accordingly went to see, and found that they were! The fire perhaps needed attention. I went in to see, and found that it was all right! I looked at the lamps, went upstairs into every bedroom in turn, and then went round the house, and even into the ice-house. Nothing was wrong; everything was in its place. Yet something was wrong! The conviction grew stronger and stronger within me.

When I at length settled down to my books again and tried to read, I became aware, for the first time, that the room seemed growing cold. Yet the day had been oppressively warm, and evening had brought no relief. The six big lamps, moreover, gave out heat enough to warm the room pleasantly. But a chilliness, that perhaps crept up from the lake, made itself felt in the room, and caused me to get up to close the glass door opening on to the verandah.

For a brief moment I stood looking out at the shaft of light that fell from the windows and shone some little distance down the pathway, and out for a few feet into the lake.

As I looked, I saw a canoe glide into the pathway of light, and immediately crossing it, pass out of sight again into the darkness. It was perhaps a hundred feet from the shore, and it moved swiftly.

I was surprised that a canoe should pass the island at that time of night, for all the summer visitors from the other side of the lake had gone home weeks before, and the island was a long way out of any line of water traffic.

My reading from this moment did not make very good progress, for somehow the picture of that canoe, gliding so dimly and swiftly across the narrow track of light on the black waters, silhouetted itself against the background of my mind with singular vividness. It kept coming between my eyes and the printed page. The more I thought about it the more surprised I became. It was of larger build than any I had seen during the past summer months, and was more like the old Indian war canoes with the high curving bows and stern and wide beam. The more I tried to read, the less success attended my efforts; and finally I closed my books and went out on the verandah to walk up and down a bit, and shake the chilliness out of my bones.

The night was perfectly still, and as dark as imaginable. I stumbled down the path to the little landing wharf, where the water made the very faintest of gurgling under the timbers. The sound of a big tree falling in the mainland forest, far across the lake, stirred echoes in the heavy air, like the first guns of a distant night attack. No other sound disturbed the stillness that reigned supreme.

As I stood upon the wharf in the broad splash of light that followed me from the sitting-room windows, I saw another canoe cross the pathway of uncertain light upon the water, and disappear at once into the impenetrable gloom that lay beyond. This time I saw more distinctly than before.