Then we drove under a cliff of obsidian, which is black glass, some two hundred feet high; and the road at its foot was made of black glass that crackled. This was no great matter, because half an hour before Tom had pulled up in the woods that we might sufficiently admire a mountain who stood all by himself, shaking with laughter or rage.

The glass cliff overlooks a lake where the beavers built a dam about a mile and a half long in a zig-zag line, as their necessities prompted. Then came the Government and strictly preserved them, and, as you shall learn later on, they be damn impudent beasts. The old lady had hardly explained the natural history of beavers before we climbed some hills—it really didn't matter in that climate, because we could have scaled the stars—and (this mattered very much indeed) shot down a desperate, dusty slope, brakes shrieking on the wheels, the mares clicking among unseen rocks, the dust dense as a fog, and a wall of trees on either side. "How do the heavy four-horse coaches take it, Tom?" I asked, remembering that some twenty-three souls had gone that way half an hour before. "Take it at the run!" said Tom, spitting out the dust. Of course there was a sharp curve, and a bridge at the bottom, but luckily nothing met us, and we came to a wooden shanty called an hotel, in time for a crazy tiffin served by very gorgeous handmaids with very pink cheeks. When health fails in other and more exciting pursuits, a season as "help" in one of the Yellowstone hotels will restore the frailest constitution.

Then by companies after tiffin we walked chattering to the uplands of Hell. They call it the Norris Geyser Basin on Earth. It was as though the tide of desolation had gone out, but would presently return, across innumerable acres of dazzling white geyser formation. There were no terraces here, but all other horrors. Not ten yards from the road a blast of steam shot up roaring every few seconds, a mud volcano spat filth to Heaven, streams of hot water rumbled under foot, plunged through the dead pines in steaming cataracts and died on a waste of white where green-grey, black-yellow, and pink pools roared, shouted, bubbled, or hissed as their wicked fancies prompted. By the look of the eye the place should have been frozen over. By the feel of the feet it was warm. I ventured out among the pools, carefully following tracks, but one unwary foot began to sink, a squirt of water followed, and having no desire to descend quick into Tophet I returned to the shore where the mud and the sulphur and the nameless fat ooze-vegetation of Lethe lay. But the very road rang as though built over a gulf; and besides, how was I to tell when the raving blast of steam would find its vent insufficient and blow the whole affair into Nirvana? There was a potent stench of stale eggs everywhere, and crystals of sulphur crumbled under the foot, and the glare of the sun on the white stuff was blinding. Sitting under a bank, to me appeared a young trooper—ex-Cape mounted Rifles, this man: the real American seems to object to his army—mounted on a horse half-maddened by the noise and steam and smell. He carried only the six-shooter and cartridge-belt. On service the Springfield carbine (which is clumsy) and a cartridge-belt slung diagonally complete equipment. The sword is no earthly use for Border warfare and, except at state parades, is never worn. The saddle is the McClellan tree over a four-folded blanket. Sweat-leathers you must pay for yourself. And the beauty of the tree is that it necessitates first very careful girthing and a thorough knowledge of tricks with the blanket to suit the varying conditions of the horse—a broncho will bloat in a night if he can get at a bellyful—and, secondly, even more careful riding to prevent galling. Crupper and breast-band do not seem to be used,—but they are casual about their accoutrements,—and the bit is the single, jaw-breaking curb which American war-pictures show us. That young man was very handsome, and the grey service hat—most like the under half of a seedy terai—shaded his strong face admirably as his horse backed and shivered and sidled and plunged all over the road, and he lectured from his saddle, one foot out of the heavy-hooded stirrup, one hand on the sweating neck. "He's not used to the Park, this brute, and he's a confirmed bolter on parade; but we understand each other." Whoosh! went the steam-blast down the road with a dry roar. Round spun the troop horse prepared to bolt, and, his momentum being suddenly checked, reared till I thought he would fall back on his rider. "Oh no; we've settled that little matter when I was breaking him," said Centaur. "He used to try to fall back on me. Isn't he a devil? I think you'd laugh to see the way our regiments are horsed. Sometimes a big Montana beast like mine has a thirteen-two broncho pony for neighbour, and it's annoying if you're used to better things. And oh, how you have to ride your mount! It's necessary; but I can tell you at the end of a long day's march, when you'd give all the world to ride like a sack, it isn't sweet to get extra drill for slouching. When we're turned out, we're turned out for anything—not a fifteen-mile trot, but for the use and behoof of all the Northern States. I've been in Arizona. A trooper there who had been in India told me that Arizona was like Afghanistan. There's nothing under Heaven there except horned toads and rattlesnakes—and Indians. Our trouble is that we only deal with Indians and they don't teach us much, and of course the citizens look down on us and all that. As a matter of fact, I suppose we're really only mounted infantry, but remember we're the best mounted infantry in the world." And the horse danced a fandango in proof.

"My faith!" said I, looking at the dusty blouse, grey hat, soiled leather accoutrements, and whalebone poise of the wearer. "If they are all like you, you are."

"Thanks, whoever you may be. Of course if we were turned into a lawn-tennis court and told to resist, say, your heavy cavalry, we'd be ridden off the face of the earth if we couldn't get away. We have neither the weight nor the drill for a charge. My horse, for instance, by English standards, is half-broken, and like all the others, he bolts when we're in line. But cavalry charge against cavalry charge doesn't happen often, and if it did, well—all our men know that up to a hundred yards they are absolutely safe behind this old thing." He patted his revolver pouch. "Absolutely safe from any shooting of yours. What man do you think would dare to use a pistol at even thirty yards, if his life depended oh it? Not one of your men. They can't shoot. We can. You'll hear about that down the Park—further up."

Then he added, courteously: "Just now it seems that the English supply all the men to the American Army. That's what makes them so good perhaps." And with mutual expressions of good-will we parted—he to an outlying patrol fifteen miles away, I to my buggy and the old lady, who, regarding the horrors of the fire-holes, could only say, "Good Lord!" at thirty-second intervals. Her husband talked about "dreffel waste of steam-power," and we went on in the clear, crisp afternoon, speculating as to the formation of geysers.

"What I say," shrieked the old lady apropos of matters theological, "and what I say more, after having seen all that, is that the Lord has ordained a Hell for such as disbelieve his gracious works."

Nota bene.—Tom had profanely cursed the near mare for stumbling. He looked straight in front of him and said no word, but the left corner of his left eye flickered in my direction.

"And if," continued the old lady, "if we find a thing so dreffel as all that steam and sulphur allowed on the face of the earth, musn't we believe that there is something ten thousand times more terrible below prepared untoe our destruction?"

Some people have a wonderful knack of extracting comfort from things. I am ashamed to say I agreed ostentatiously with the old lady. She developed the personal view of the matter.