"I see it!" I exclaimed, and I handed the book to Larke.

"So this is the secret of the poet's fascination," he answered. "But I see no path. The cliff is as smooth as an egg-shell, save for that one projecting rib."

"That is the path," I replied.

A shoulder of rock with a ribbon of snow upon its ridge jutted out from the summit of the cliff, and descended in an unbroken line to the road.

"'Tis impossible to ascend that," said he. "We should break our necks for a surety or ever we were half-way up."

"It shows steeper than it is," I answered. "We are not well-placed for judging of its incline; for that we should see it in profile. But where snow lies, there a man may climb."

Jack raised no further objection; but ever and again I noticed him gazing at me with a puzzled expression upon his face. We crouched down in the undergrowth until such time as the night should fall, blowing on our fingers and pressing close against each other for warmth's sake. But 'twas of little use; my body tingled with cold, and I began to think my muscles would be frozen stiff, before the darkness gave us leave to move. The valley, moreover, looked singularly mournful and desolate in its shroud of white. As far as the eye could travel not a living thing could be seen, nor could the ear detect a sound. The region brooded in a sinister silence. I verily believe that I should have loosed my horse and fled but for the presence of my companion.

Jack, however, was in no higher spirits than myself, and from the continual glances of his eyes I think that he was infected with a wholesome fear of the rib of rock. At last the dusk fell; the lights began to twinkle in the village and in the upper windows of the Castle. For a wall, broken here and there by round turrets, circled about the edge of the cliff and hid the lower storey from our sight.

We looked to the priming of our pistols, buckled our swords tighter about the waist, shook the snow from our cloaks, and cautiously stepped out on to the path. At the edge of the village we stopped. 'Twas but one street; but that very narrow and busy. Not a moment passed but a door opened, and a panel of orange light was thrown across the gloom, and the figures of men and women were seen passing and repassing. The village was astir and humming like a hive. But there was no other way. For on our right rose the tooth of rock in a sheer scarp; on our left the ground broke steeply away at the backs of the houses.

"We must make a dash for it," said Larke. We waited until the street cleared for a moment, and then ran between the houses as fast as our legs would carry us. The snow deadened the sound of our feet, and we were well-nigh through the village when Larke tripped over a hillock and stumbled forward on his face with a curse. The next instant I dropped down beside him, and covering his mouth with my hand, forced him prone to the ground. For barely twenty feet ahead a door had suddenly opened, and a man dressed in the jacket and short breeches of the Tyroler came out on to the path. He stood with his back towards us and exchanged some jest with the inmates of the house, and I recognised his voice. I had heard it no more than once, it is true, but the occasion had fixed the sound of it for ever in my memories. It was the voice of the spy who had tracked us in the streets of Bristol. He turned towards the door, so that the light streamed full upon his face, shouted a "God be with you," and strode off in the direction of the Castle. The sight of him left me no room for doubt. That he had outstripped us caused me, indeed, little surprise, for we had travelled by a devious way, and had, moreover, delayed here and there upon the road.