heart.  The mare snuffled; we turned and made down-hill.  And still the mist thickened, and seemed to darken ever so little; we went slowly, suddenly doubtful of all that was in front.  There came into our minds visions, so distant in that darkening vapour, of a warm stall and manger of oats; of tea and a log fire.  The mist seemed to have fingers now, long, dark white, crawling fingers; it seemed, too, to have in its sheer silence a sort of muttered menace, a shuddery lurkingness, as if from out of it that spirit of the unknown, which in hot blood we had just now so gleefully mocked, were creeping up at us, intent on its vengeance.  Since the ground no longer sloped, we could not go down-hill; there were no means left of telling in what direction we were moving, and we stopped to listen.  There was no sound, not one tiny noise of water, wind in trees, or man; not even of birds or the moor ponies.  And the mist darkened.  The mare reached her head down and walked on, smelling at the heather; every time she sniffed, one’s heart quivered, hoping she had found the way.  She threw up her head, snorted, and stood still; and there passed just in front of us a pony and her foal, shapes of scampering dusk, whisked like blurred shadows across a sheet.  Hoof-silent in the long heather—­as ever were visiting ghosts—­they were gone in a flash.  The mare plunged forward, following.  But, in the feel of her gallop, and the feel of my heart, there was no more that ecstasy of facing the unknown; there was only the cold, hasty dread of loneliness.  Far asunder as the poles were those two sensations, evoked by this same motion.  The mare swerved violently and stopped.  There, passing within three yards, from the same direction as before, the soundless shapes of the pony and her foal flew by again, more intangible, less dusky now against the darker screen.  Were we, then, to be haunted by those bewildering uncanny ones, flitting past ever from the same direction?  This time the mare did not follow, but stood still; knowing as well as I that direction was quite lost.  Soon, with a whimper, she picked her way on again, smelling at the heather.  And the mist darkened!

Then, out of the heart of that dusky whiteness, came a tiny sound; we stood, not breathing, turning our heads.  I could see the mare’s eye fixed and straining at the vapour.  The tiny sound grew till it became the muttering of wheels.  The mare dashed forward.  The muttering ceased untimely; but she did not stop; turning abruptly to the left, she slid, scrambled, and dropped into a trot.  The mist seemed whiter below us; we were on the road.  And involuntarily there came from me a sound, not quite a shout, not quite an oath.  I saw the mare’s eye turn back, faintly derisive, as who should say:  Alone I did it!  Then slowly, comfortably, a little ashamed, we jogged on, in the mood of men and horses when danger is over.  So pleasant it seemed now, in one short half-hour, to have passed through the circle-swing of the emotions, from the ecstasy of hot recklessness to the clutching of chill fear.  But the meeting-point of those two sensations we had left out there on the mysterious moor!  Why, at one moment, had we thought it finer than anything on earth to risk the breaking of our necks; and the next, shuddered at being lost in the darkening mist with winter night fast coming on?