“You must have read in the account of the inquest about the man’s cabin, Mr. Holmes, but perhaps your friend here has not heard of it. He had built himself a wooden outhouse - he always called it the ‘cabin’ - a few hundred yards from his house, and it was here that he slept every night. It was a little, single-roomed hut, sixteen feet by ten. He kept the key in his pocket, made his own bed, cleaned it himself, and allowed no other foot to cross the threshold. There are small windows on each side, which were covered by curtains and never opened. One of these windows was turned towards the high road, and when the light burned in it at night the folk used to point it out to each other and wonder what Black Peter was doing in there. That’s the window, Mr. Holmes, which gave us one of the few bits of positive evidence that came out at the inquest.

“You remember that a stonemason, named Slater, walking from Forest Row about one o’clock in the morning - two days before the murder - stopped as he passed the grounds and looked at the square of light still shining among the trees. He swears that the shadow of a man’s head turned sideways was clearly visible on the blind, and that this shadow was certainly not that of Peter Carey, whom he knew well. It was that of a bearded man, but the beard was short and bristled forward in a way very different from that of the captain. So he says, but he had been two hours in the public-house, and it is some distance from the road to the window. Besides, this refers to the Monday, and the crime was done upon the Wednesday.

“On the Tuesday, Peter Carey was in one of his blackest moods, flushed with drink and as savage as a dangerous wild beast. He roamed about the house, and the women ran for it when they heard him coming. Late in the evening, he went down to his own hut. About two o’clock the following morning, his daughter, who slept with her window open, heard a most fearful yell from that direction, but it was no unusual thing for him to bawl and shout when he was in drink, so no notice was taken. On rising at seven, one of the maids noticed that the door of the hut was open, but so great was the terror which the man caused that it was midday before anyone would venture down to see what had become of him. Peeping into the open door, they saw a sight which sent them flying, with white faces, into the village. Within an hour, I was on the spot and had taken over the case.

“Well, I have fairly steady nerves, as you know, Mr. Holmes, but I give you my word, that I got a shake when I put my head into that little house. It was droning like a harmonium with the flies and bluebottles, and the floor and walls were like a slaughter-house. He had called it a cabin, and a cabin it was, sure enough, for you would have thought that you were in a ship. There was a bunk at one end, a sea-chest, maps and charts, a picture of the Sea Unicorn, a line of logbooks on a shelf, all exactly as one would expect to find it in a captain’s room. And there, in the middle of it, was the man himself - his face twisted like a lost soul in torment, and his great brindled beard stuck upward in his agony. Right through his broad breast a steel harpoon had been driven, and it had sunk deep into the wood of the wall behind him. He was pinned like a beetle on a card. Of course, he was quite dead, and had been so from the instant that he had uttered that last yell of agony.

“I know your methods, sir, and I applied them. Before I permitted anything to be moved, I examined most carefully the ground outside, and also the floor of the room. There were no footmarks.”

“Meaning that you saw none?”

“I assure you, sir, that there were none.”