Indeed, I despair of conveying to others how gravely this sombre companionship and more sombre uncertainty aggravated the terrors of a journey, that at the best of times must have been little to my taste. To the common risks of the road, deserted at that hour by all save cutpurses and rogues, was added a suspicion, as much more harassing than these, as unseen dangers ever surpass the known. It was in vain that I strove to divert my mind from the figure by my side; neither the bleak heath above Greenwich--whence we looked back at the reddish haze that canopied London, and forward to where the Thames marshes stretched eastward under night--nor the gibbet on Dartford Brent, where a body hung in chains, poisoning the air, nor the light that shone dim and solitary, far to the left, across the river, and puzzled me until he told me that it was Tilbury--neither of these things, I say, though they occupied my thoughts by turns and for a moment, had power to drive him from my mind, or divert my fears to dangers more apparent. And in this mood, now glancing askance at him, and now moving uneasily under his gaze, I might have ridden to Rochester if my ear had not caught--I think when we were two or three miles short of the city--the sound of a horse trotting fast on the road behind us.
At first it followed so faintly on the breeze that I doubted, thinking it might be either the echo of our hoofs, or a pulse beating in my ears. Then, on a hard piece of ground, it declared itself unmistakably; and again as suddenly it died away.
At that I spoke involuntarily. "He has stopped," I said.
Smith laughed in his teeth. "He is crossing the wet bottom, fool--by the creek," he said.
And before I could answer him the dull sound of a horse galloping fast, but moving on the turf that ran alongside the road, proved him to be right. "Draw up!" he whispered in something of a hurry, and then, as I hesitated, "Do you hear?" he continued, sharply seizing my rein. "What do you fear? Do you think that night birds prey on night birds?"
Whatever I feared, I feared him more: and turning my horse, I sat shivering. For notwithstanding his confident words I saw that he was handling his holster; and I knew that he was drawing a pistol; and it was well the suspense was short. Before I had time for many qualms, the horseman, a dark figure, lurched on us through the gloom, pulled his horse on to its haunches, and, with raised hand, cried to us to deliver.