“No, no, it was a hound. My God, can there be some truth in all these stories? Is it possible that I am really in danger from so dark a cause? You don’t believe it, do you, Watson?”

“No, no.”

“And yet it was one thing to laugh about it in London, and it is another to stand out here in the darkness of the moor and to hear such a cry as that. And my uncle! There was the footprint of the hound beside him as he lay. It all fits together. I don’t think that I am a coward, Watson, but that sound seemed to freeze my very blood. Feel my hand!”

It was as cold as a block of marble.

“You’ll be all right to-morrow.”

“I don’t think I’ll get that cry out of my head. What do you advise that we do now?”

“Shall we turn back?”

“No, by thunder; we have come out to get our man, and we will do it. We after the convict, and a hell-hound, as likely as not, after us. Come on! We’ll see it through if all the fiends of the pit were loose upon the moor.”

We stumbled slowly along in the darkness, with the black loom of the craggy hills around us, and the yellow speck of light burning steadily in front. There is nothing so deceptive as the distance of a light upon a pitch-dark night, and sometimes the glimmer seemed to be far away upon the horizon and sometimes it might have been within a few yards of us. But at last we could see whence it came, and then we knew that we were indeed very close. A guttering candle was stuck in a crevice of the rocks which flanked it on each side so as to keep the wind from it and also to prevent it from being visible, save in the direction of Baskerville Hall. A boulder of granite concealed our approach, and crouching behind it we gazed over it at the signal light. It was strange to see this single candle burning there in the middle of the moor, with no sign of life near it - just the one straight yellow flame and the gleam of the rock on each side of it.

“What shall we do now?” whispered Sir Henry.

“Wait here. He must be near his light. Let us see if we can get a glimpse of him.”

The words were hardly out of my mouth when we both saw him. Over the rocks, in the crevice of which the candle burned, there was thrust out an evil yellow face, a terrible animal face, all seamed and scored with vile passions. Foul with mire, with a bristling beard, and hung with matted hair, it might well have belonged to one of those old savages who dwelt in the burrows on the hillsides. The light beneath him was reflected in his small, cunning eyes which peered fiercely to right and left through the darkness like a crafty and savage animal who has heard the steps of the hunters.

Something had evidently aroused his suspicions. It may have been that Barrymore had some private signal which we had neglected to give, or the fellow may have had some other reason for thinking that all was not well, but I could read his fears upon his wicked face. Any instant he might dash out the light and vanish in the darkness. I sprang forward therefore, and Sir Henry did the same. At the same moment the convict screamed out a curse at us and hurled a rock which splintered up against the boulder which had sheltered us. I caught one glimpse of his short, squat, strongly built figure as he sprang to his feet and turned to run. At the same moment by a lucky chance the moon broke through the clouds. We rushed over the brow of the hill, and there was our man running with great speed down the other side, springing over the stones in his way with the activity of a mountain goat. A lucky long shot of my revolver might have crippled him, but I had brought it only to defend myself if attacked and not to shoot an unarmed man who was running away.