As we passed out he exchanged a few words with the landlord, explaining that we were going on a late visit to an acquaintance, and that it was possible that we might spend the night there. A moment later we were out on the dark road, a chill wind blowing in our faces, and one yellow light twinkling in front of us through the gloom to guide us on our sombre errand.

There was little difficulty in entering the grounds, for unrepaired breaches gaped in the old park wall. Making our way among the trees, we reached the lawn, crossed it, and were about to enter through the window when out from a clump of laurel bushes there darted what seemed to be a hideous and distorted child, who threw itself upon the grass with writhing limbs and then ran swiftly across the lawn into the darkness.

“My God!” I whispered; “did you see it?”

Holmes was for the moment as startled as I. His hand closed like a vise upon my wrist in his agitation. Then he broke into a low laugh and put his lips to my ear.

“It is a nice household,” he murmured. “That is the baboon.”

I had forgotten the strange pets which the doctor affected. There was a cheetah, too; perhaps we might find it upon our shoulders at any moment. I confess confess that I felt easier in my mind when, after following Holmes’s example and slipping off my shoes, I found myself inside the bedroom. My companion noiselessly closed the shutters, moved the lamp onto the table, and cast his eyes round the room. All was as we had seen it in the daytime. Then creeping up to me and making a trumpet of his hand, he whispered into my ear again so gently that it was all that I could do to distinguish the words:

“The least sound would be fatal to our plans.”

I nodded to show that I had heard.

“We must sit without light. He would see it through the ventilator.”

I nodded again.

“Do not go asleep; your very life may depend upon it. Have your pistol ready in case we should need it. I will sit on the side of the bed, and you in that chair.”

I took out my revolver and laid it on the corner of the table.

Holmes had brought up a long thin cane, and this he placed upon the bed beside him. By it he laid the box of matches and the stump of a candle. Then he turned down the lamp, and we were left in darkness.

How shall I ever forget that dreadful vigil? I could not hear a sound, not even the drawing of a breath, and yet I knew that my companion sat open-eyed, within a few feet of me, in the same state of nervous tension in which I was myself. The shutters cut off the least ray of light, and we waited in absolute darkness. From outside came the occasional cry of a night-bird, and once at our very window a long drawn catlike whine, which told us that the cheetah was indeed at liberty. Far away we could hear the deep tones of the parish clock, which boomed out every quarter of an hour. How long they seemed, those quarters! Twelve struck, and one and two and three, and still we sat waiting silently for whatever might befall.

“Aren’t you off there!” he called out, in masculine menace. The noise stopped, there was a scuffle. But the feet returned and the voices resumed. Almost immediately the door opened, boys were heard muttering among themselves. Millicent had given them a penny. Feet scraped on the yard, then went thudding along the side of the house, to the street.

To Aaron Sisson, this was home, this was Christmas: the unspeakably familiar. The war over, nothing was changed. Yet everything changed. The scullery in which he stood was painted green, quite fresh, very clean, the floor was red tiles. The wash–copper of red bricks was very red, the mangle with its put–up board was white–scrubbed, the American oil–cloth on the table had a gay pattern, there was a warm fire, the water in the boiler hissed faintly. And in front of him, beneath him as he leaned forward shaving, a drop of water fell with strange, incalculable rhythm from the bright brass tap into the white enamelled bowl, which was now half full of pure, quivering water. The war was over, and everything just the same. The acute familiarity of this house, which he had built for his marriage twelve years ago, the changeless pleasantness of it all seemed unthinkable. It prevented his thinking.

When he went into the middle room to comb his hair he found the Christmas tree sparkling, his wife was making pastry at the table, the baby was sitting up propped in cushions.

“Father,” said Millicent, approaching him with a flat blue–and–white angel of cotton–wool, and two ends of cotton—“tie the angel at the top.”

“Tie it at the top?” he said, looking down.

“Yes. At the very top—because it’s just come down from the sky.”

“Ay my word!” he laughed. And he tied the angel.

Coming downstairs after changing he went into the icy cold parlour, and took his music and a small handbag. With this he retreated again to the back kitchen. He was still in trousers and shirt and slippers: but now it was a clean white shirt, and his best black trousers, and new pink and white braces. He sat under the gas–jet of the back kitchen, looking through his music. Then he opened the bag, in which were sections of a flute and a piccolo. He took out the flute, and adjusted it. As he sat he was physically aware of the sounds of the night: the bubbling of water in the boiler, the faint sound of the gas, the sudden crying of the baby in the next room, then noises outside, distant boys shouting, distant rags of carols, fragments of voices of men. The whole country was roused and excited.

The little room was hot. Aaron rose and opened a square ventilator over the copper, letting in a stream of cold air, which was grateful to him. Then he cocked his eye over the sheet of music spread out on the table before him. He tried his flute. And then at last, with the odd gesture of a diver taking a plunge, he swung his head and began to play. A stream of music, soft and rich and fluid, came out of the flute. He played beautifully. He moved his head and his raised bare arms with slight, intense movements, as the delicate music poured out. It was sixteenth–century Christmas melody, very limpid and delicate.