A few minutes afterwards, certainly not drunk, and I hope efficient, I left the Palacete Mendoza, and walked through the gardens to the villa. Morse himself barred the door after me.
It was bitter, aching cold and the wind was razor-keen. Gaunt wreaths of mist were all around like a legion of ghosts, and I realized that the clouds were descending upon us, and soon I should not be able to see a yard before me, though the electric lamps that never went out all night, over the whole City, glowed with a dim blueness here and there through the fog.
However, I found the villa all right, and my Chinese boy waiting in the hall. He took my coat, saw that the fires in the sitting-room and the adjoining bedroom were made up, and then I told him he might be off to his quarters on the second stage, for which he seemed extremely thankful.
I don't suppose he had been gone more than a minute when the door of my sitting-room opened and Rolston came in quickly. He was wearing a dressing-gown and pyjamas and his hair was all rough like one recently aroused from sleep.
"What on earth's the matter?" I said.
"I undressed," he said, "in my bedroom, which is just above yours as you know, and fell asleep in my chair with all the lights on. I woke only a short time ago, and before switching off the lamps I went to the window to see what sort of a night it was."
"Hellish, if you want to know."
"The light streamed out upon a great curtain of mist, almost like the projector lamp upon a screen of a kinema. Sir Thomas, as I stood there I could swear that something big, black and oblong sank down from that darkness above, passed through my zone of light and disappeared in the blackness below."
"What on earth do you mean, what sort of a thing?"
He hesitated for a moment and then he said: