At last there came one dreadful day when the facts could no longer be concealed from the husband. The nurse’s nerve had given way; she could stand the strain no longer, and she made a clean breast of it all to the man. To him it seemed as wild a tale as it may now seem to you. He knew his wife to be a loving wife, and, save for the assaults upon her stepson, a loving mother. Why, then, should she wound her own dear little baby? He told the nurse that she was dreaming, that her suspicions were those of a lunatic, and that such libels upon her mistress were not to be tolerated. While they were talking a sudden cry of pain was heard. Nurse and master rushed together to the nursery. Imagine his feelings, Mr. Holmes, as he saw his wife rise from a kneeling position beside the cot and saw blood upon the child’s exposed neck and upon the sheet. With a cry of horror, he turned his wife’s face to the light and saw blood all round her lips. It was she - she beyond all question - who had drunk the poor baby’s blood.

So the matter stands. She is now confined to her room. There has been no explanation. The husband is half demented. He knows, and I know, little of vampirism beyond the name. We had thought it was some wild tale of foreign parts. And yet here in the very heart of the English Sussex - well, all this can be discussed with you in the morning. Will you see me? Will you use your great powers in aiding a distracted man? If so, kindly wire to Ferguson, Cheeseman’s, Lamberley, and I will be at your rooms by ten o’clock.

Yours faithfully,

ROBERT FERGUSON.

P. S. I believe your friend Watson played Rugby for Blackheath when I was three-quarter for Richmond. It is the only personal introduction which I can give.

“Of course I remembered him,” said I as I laid down the letter. “Big Bob Ferguson, the finest three-quarter Richmond ever had. He was always a good-natured chap. It’s like him to be so concerned over a friend’s case.”

Holmes looked at me thoughtfully and shook his head.

“I never get your limits, Watson,” said he. “There are unexplored possibilities about you. Take a wire down, like a good fellow. ‘Will examine your case with pleasure.’ ”

“Your case!”

“We must not let him think that this agency is a home for the weak-minded. Of course it is his case. Send him that wire and let the matter rest till morning.”

Promptly at ten o’clock next morning Ferguson strode into our room. I had remembered him as a long, slab-sided man with loose limbs and a fine turn of speed which had carried him round many an opposing back. There is surely nothing in life more painful than to meet the wreck of a fine athlete whom one has known in his prime. His great frame had fallen in, his flaxen hair was scanty, and his shoulders were bowed. I fear that I roused corresponding emotions in him.

“Hullo, Watson,” said he, and his voice was still deep and hearty. “You don’t look quite the man you did when I threw you over the ropes into the crowd at the Old Deer Park. I expect I have changed a bit also. But it’s this last day or two that has aged me. I see by your telegram, Mr. Holmes, that it is no use my pretending to be anyone’s deputy.”

“It is simpler to deal direct,” said Holmes.

“Of course it is. But you can imagine how difficult it is when you are speaking of the one woman whom you are bound to protect and help. What can I do? How am I to go to the police with such a story? And yet the kiddies have got to be protected. Is it madness, Mr. Holmes? Is it something in the blood? Have you any similar case in your experience? For God’s sake, give me some advice, for I am at my wit’s end.”