The pure, mindless, exquisite motion and fluidity of the music delighted him with a strange exasperation. There was something tense, exasperated to the point of intolerable anger, in his good–humored breast, as he played the finely–spun peace–music. The more exquisite the music, the more perfectly he produced it, in sheer bliss; and at the same time, the more intense was the maddened exasperation within him.

Millicent appeared in the room. She fidgetted at the sink. The music was a bugbear to her, because it prevented her from saying what was on her own mind. At length it ended, her father was turning over the various books and sheets. She looked at him quickly, seizing her opportunity.

“Are you going out, Father?” she said.

“Eh?”

“Are you going out?” She twisted nervously.

“What do you want to know for?”

He made no other answer, and turned again to the music. His eye went down a sheet—then over it again—then more closely over it again.

“Are you?” persisted the child, balancing on one foot.

He looked at her, and his eyes were angry under knitted brows.

“What are you bothering about?” he said.

“I’m not bothering—I only wanted to know if you were going out,” she pouted, quivering to cry.

“I expect I am,” he said quietly.

She recovered at once, but still with timidity asked:

“We haven’t got any candles for the Christmas tree—shall you buy some, because mother isn’t going out?”

“Candles!” he repeated, settling his music and and taking up the piccolo.

“Yes—shall you buy us some, Father? Shall you?”

“Candles!” he repeated, putting the piccolo to his mouth and blowing a few piercing, preparatory notes.

“Yes, little Christmas–tree candles—blue ones and red ones, in boxes —Shall you, Father?”

“We’ll see—if I see any—”

“But SHALL you?” she insisted desperately. She wisely mistrusted his vagueness.

But he was looking unheeding at the music. Then suddenly the piccolo broke forth, wild, shrill, brilliant. He was playing Mozart. The child’s face went pale with anger at the sound. She turned, and went out, closing both doors behind her to shut out the noise.

The shrill, rapid movement of the piccolo music seemed to possess the air, it was useless to try to shut it out. The man went on playing to himself, measured and insistent. In the frosty evening the sound carried. People passing down the street hesitated, listening. The neighbours knew it was Aaron practising his piccolo. He was esteemed a good player: was in request at concerts and dances, also at swell balls. So the vivid piping sound tickled the darkness.

He played on till about seven o’clock; he did not want to go out too soon, in spite of the early closing of the public houses. He never went with the stream, but made a side current of his own. His wife said he was contrary. When he went into the middle room to put on his collar and tie, the two little girls were having their hair brushed, the baby was in bed, there was a hot smell of mince–pies baking in the oven.

“Entirely.”

“Do not think of revenge, or anything of the sort, at present. I think that we may gain that by means of the law; but we have our web to weave, while theirs is already woven. The first consideration is to remove the pressing danger which threatens you. The second is to clear up the mystery and to punish the guilty parties.”

“I thank you,” said the young man, rising and pulling on his overcoat. “You have given me fresh life and hope. I shall certainly do as you advise.”

“Do not lose an instant. And, above all, take care of yourself in the meanwhile, for I do not think that there can be a doubt that you are threatened by a very real and imminent danger. How do you go back?

“By train from Waterloo.”

“It is not yet nine. The streets will be crowded, so I trust that you may be in safety. And yet you cannot guard yourself too closely.”

“I am armed.”

“That is well. To-morrow I shall set to work upon your case.”

“I shall see you at Horsham, then?”

“No, your secret lies in London. It is there that I shall seek it.”

“Then I shall call upon you in a day, or in two days, with news as to the box and the papers. I shall take your advice in every particular.” He shook hands with us and took his leave. Outside the wind still screamed and the rain splashed and pattered against the windows. This strange, wild story seemed to have come to us from amid the mad elements — blown in upon us like a sheet of sea-weed in a gale — and now to have been reabsorbed by them once more.

Sherlock Holmes sat for some time in silence, with his head sunk forward and his eyes bent upon the red glow of the fire. Then he lit his pipe, and leaning back in his chair he watched the blue smoke-rings as they chased each other up to the ceiling.

“I think, Watson,” he remarked at last, “that of all our cases we have had none more fantastic than this.”

“Save, perhaps, the Sign of Four.”

“Well, yes. Save, perhaps, that. And yet this John Openshaw seems to me to be walking amid even greater perils than did the Sholtos.”

“But have you,” I asked, “formed any definite conception as to what these perils are?”

“There can be no question as to their nature,” he answered.

“Then what are they? Who is this K. K. K., and why does he pursue this unhappy family?”

Sherlock Holmes closed his eyes and placed his elbows upon the arms of his chair, with his finger-tips together. “The ideal reasoner,” he remarked, “would, when he had once been shown a single fact in all its bearings, deduce from it not only all the chain of events which led up to it but also all the results which would follow from it. As Cuvier could correctly describe a whole animal by the contemplation of a single bone, so the observer who has thoroughly understood one link in a series of incidents should be able to accurately state all the other ones, both before and after. We have not yet grasped the results which the reason alone can attain to. Problems may be solved in the study which have baffled all those who have sought a solution by the aid of their senses. To carry the art, however, to its highest pitch, it is necessary that the reasoner should be able to utilize all the facts which have come to his knowledge; and this in itself implies, as you will readily see, a possession of all knowledge, which, even in these days of free education and encyclopaedias, is a somewhat rare accomplishment. It is not so impossible, however, that a man should possess all knowledge which is likely to be useful to him in his work, and this I have endeavoured in my case to do. If I remember rightly, you on one occasion, in the early days of our friendship, defined my limits in a very precise fashion.”