However, came the war, Hilda and Connie were rushed home again after having been home already in May, to their mother’s funeral. Before Christmas of 1914 both their German young men were dead: whereupon the sisters wept, and loved the young men passionately, but underneath forgot them. They didn’t exist any more.

Both sisters lived in their father’s, really their mother’s, Kensington housemixed with the young Cambridge group, the group that stood for ‘freedom’ and flannel trousers, and flannel shirts open at the neck, and a well–bred sort of emotional anarchy, and a whispering, murmuring sort of voice, and an ultra–sensitive sort of manner. Hilda, however, suddenly married a man ten years older than herself, an elder member of the same Cambridge group, a man with a fair amount of money, and a comfortable family job in the government: he also wrote philosophical essays. She lived with him in a smallish house in Westminster, and moved in that good sort of society of people in the government who are not tip–toppers, but who are, or would be, the real intelligent power in the nation: people who know what they’re talking about, or talk as if they did.

Connie did a mild form of war–work, and consorted with the flannel–trousers Cambridge intransigents, who gently mocked at everything, so far. Her ‘friend’ was a Clifford Chatterley, a young man of twenty–two, who had hurried home from Bonn, where he was studying the technicalities of coal–mining. He had previously spent two two years at Cambridge. Now he had become a first lieutenant in a smart regiment, so he could mock at everything more becomingly in uniform.

Clifford Chatterley was more upper–class than Connie. Connie was well–to–do intelligentsia, but he was aristocracy. Not the big sort, but still it. His father was a baronet, and his mother had been a viscount’s daughter.

But Clifford, while he was better bred than Connie, and more ‘society’, was in his own way more provincial and more timid. He was at his ease in the narrow ‘great world’, that is, landed aristocracy society, but he was shy and nervous of all that other big world which consists of the vast hordes of the middle and lower classes, and foreigners. If the truth must be told, he was just a little bit frightened of middle–and lower–class humanity, and of foreigners not of his own class. He was, in some paralysing way, conscious of his own defencelessness, though he had all the defence of privilege. Which is curious, but a phenomenon of our day.

Therefore the peculiar soft assurance of a girl like Constance Reid fascinated him. She was so much more mistress of herself in that outer world of chaos than he was master of himself.

Nevertheless he too was a rebel: rebelling even against his class. Or perhaps rebel is too strong a word; far too strong. He was only caught in the general, popular recoil of the young against convention and against any sort of real authority. Fathers were ridiculous: his own obstinate one supremely so. And governments were ridiculous: our own wait–and–see sort especially so. And armies were ridiculous, and old buffers of generals altogether, the red–faced Kitchener supremely. Even the war was ridiculous, though it did kill rather a lot of people.

“The vicar knew. He was in our confidence. He would tell you that she was an angel upon earth. That was why he telegraphed to me and I returned. What was my baggage or Africa to me when I learned that such a fate had come upon my darling? There you have the missing clue to my action, Mr. Holmes.”

“Proceed,” said my friend.

Dr. Sterndale drew from his pocket a paper packet and laid it upon the table. On the outside was written “Radix pedis diaboli” with a red poison label beneath it. He pushed it towards me. “I understand that you are a doctor, sir. Have you ever heard of this preparation?”

“Devil’s-foot root! No, I have never heard of it.”

“It is no reflection upon your professional knowledge,” said he, “for I believe that, save for one sample in a laboratory at Buda, there is no other specimen in Europe. It has not yet found its way either into the pharmacopaeia or into the literature of toxicology. The root is shaped like a foot, half human, half goatlike; hence the fanciful name given by a botanical missionary. It is used as an ordeal poison by the medicine-men in certain districts of West Africa and is kept as a secret among them. This particular specimen I obtained under very extraordinary circumstances in the Ubangi country.” He opened the paper as he spoke and disclosed a heap of reddish-brown, snuff-like powder.

“Well, sir?” asked Holmes sternly.

“I am about to tell you, Mr. Holmes, all that actually occurred, for you already know so much that it is clearly to my interest that you should know all. I have already explained the relationship in which I stood to the Tregennis family. For the sake of the sister I was friendly with the brothers. There was a family quarrel about money which estranged this man Mortimer, but it was supposed to be made up, and I afterwards met him as I did the others. He was a sly, subtle, scheming man, and several things arose which gave me a suspicion of him, but I had no cause for any positive quarrel.

“One day, only a couple of weeks ago, he came down to my cottage and I showed him some of my African curiosities. Among other things I exhibited this powder, and I told him of its strange properties, how it stimulates those brain centres which control the emotion of fear, and how either madness or death is the fate of the unhappy native who is subjected to the ordeal by the priest of his tribe. I told him also how powerless European science would be to detect it. How hi took it I cannot say, for I never left the room, but there is no doubt that it was then, while I was opening cabinets and stooping to boxes, that he managed to abstract some of the devil’s-foot root. I well remember how he plied me with questions as to the amount and the time that was needed for its effect, but I little dreamed that he could have a personal reason for asking.

“I thought no more of the matter until the vicar’s telegram reached me at Plymouth. This villain had thought that I would be at sea before the news could reach me, and that I should be lost for years in Africa. But I returned at once. Of course, I could not listen to the details without feeling assured that my poison had been used. I came round to see you on the chance that some other explanation had suggested itself to you. But there could be none. I was convinced that Mortimer Tregennis was the murderer; that for the sake of money, and with the idea, perhaps, that if the other members of his family were all insane he would be the sole guardian of their joint property, he had used the devil’s-foot powder upon them, driven two of them out of their senses, and killed his sister Brenda, the one human being whom I have ever loved or who has ever loved me. There was his crime; what was to be his punishment?