It occurred to a medical man some years ago that the uniform atmosphere of this cave might be a specific for consumption.

Possessed with this theory, the doctor had a dozen small houses constructed in the cavern, about a mile or two from its mouth, and to these he conveyed his patients. From the appearance of these places of abode, the only wonder is that the poor invalids did not expire after twenty-four hours of residence in them. They, however, contrived to exist there about three months, most of them being carried out in extremis. The houses consisted of a single room, built of the rough stone of the cavern,—which, in this part, bears all the appearance of a stone-quarry,—and without one particle of comfort beyond a boarded floor, the small dwelling being constructed entirely on the model of a lock-up, or “stone-jug.” The cells of a modern prison are quite palatial in comparison with them. The darkness is such as might be felt; and it is impossible to realize what darkness actually is until experienced in some place where a ray of sunlight has never penetrated.

From the mouth of the cavern to that part where the doctor’s houses were built was a continual, though gradual, descent, and at that spot there was a solid roof of a hundred and fifty feet of earth. The houses—or rather detached stone boxes—were so small that without vitiating the air only one person could remain in them at one time; so that, besides the darkness,—in case of any accident to their lamps,—these poor creatures must have endured utter solitude. Their food was brought from the hotel, two or three miles away, on the hill, and consequently must have been cold and comfortless. They were kept prisoners within their narrow cells, for the rough rocks and stones everywhere abounding rendered a promenade for invalids quite impracticable. The deprivation of sunlight, fresh air, and all the beauties of the earth must have been the direst punishment imaginable. No wonder these poor creatures were carried out one by one to die.

The last one having become so weak that it was deemed unsafe to move him, his friends resolved to stay with him in the cavern till the last. What transpired is now beyond investigation. Whether some effect of light, which in this cavern has a most mysterious and awful appearance, or whether the death-bed was one of terrors, owing to some imp of mischief having laid a plan to “scare” them, as they say in this country, is not known; but they rushed terror-stricken from the cave, and on reaching the hotel fell down insensible. Subsequently they declared they had seen spirits carrying away their friend. Mustering a strong force, the people from terra firma, with the guides and plenty of torches, sallied down to the lower and supposed infernal regions. The spirits, however, had fled, leaving nothing but the stiffening corpse of the poor consumptive. This ended all hope of the cavern as a cure for consumption.

The Mammoth Cave is perhaps the most extensively explored cavern known. It extends for nine continuous miles, so that it would be possible to walk fifty miles in and out by different roads. The cavern consists of various large chambers and lofty domes, averaging from twenty to one hundred feet in height. Some of the chambers exactly resemble the tombs of the kings of Egypt, and the narrow tortuous defiles through the rocks are also very like the roads into the Pyramids. Most of these chambers are merely natural excavations in the solid rock. One of the white-domed ceilings is covered with a thick scroll-pattern traced in black, and consists entirely of bats, which take up their winter quarters in these caverns, and fare better in them apparently than the consumptives. It is curious how these sightless creatures, from various parts of the country, find out the caves, so impervious to light and cold, and where, from the noise they make, they seem to have a merry time of it. Not so, however, the visitors passing through this part of the cave; for the bats are apt to fly right in one’s face, or stick against one’s clothes, and bite furiously at any attempt to dislodge them.

Still farther on there is a vast vault, upward of eighty feet high, formed of gypsum with some sort of crystals embedded in it. When you sit and gaze on it for some time, by the dim light of the lamps, the vault seems to recede into azure space. A bright sparkling veil hangs over it like the milky way, seen dimly between the shelving rocks, which bulge out in round soft layers, of a whitish-gray cast, and look exactly like petrified clouds. By a judicious movement of the light of the lamps a most beautiful phenomenon of cloud-scenery is effected, and by their gradual extinction a Stygian darkness seems to wrap all in perfect horror. This, the “Star Chamber,” is one of the finest effects in the Mammoth Cave, and it might be enhanced to the wildest magnificence by an artistic arrangement of variously colored lights. The cave would be a fine place in which to read Dante’s Inferno.

Here and there through the cave there are immense pits or chasms, only some few yards in circumference, but from two to three hundred feet in depth. A piece of paper saturated in oil is thrown down and displays the fearful gulf, the bottom of which appears to have the same formation of rock and clay as the top. Sometimes we ascended ten or twenty feet by ladders and occasionally descended. We traversed about a mile of passage where the ceiling, six feet high, was as smooth and white as plaster could have made it. It was literally covered with the names of former visitors. In some places there were hundreds of cards on the floor, left by guests,—so it is not only English people who have a mania for inscribing their names. Indeed, as to that, it is common to most nations, for I had a secretary named Van Kenkle, who wrote his name upon every article belonging to me.

For eight or nine miles we continued to traverse passages and chambers, sometimes over rough pieces of rock, sometimes through the thick dust of ages, sometimes through the tortuous gorges,—mere slits between the rocks through which we had to creep,—sometimes coming upon a well or spring of sweet water. At about three or four miles from the mouth we came to the chamber called “The Church,” from its resemblance to the ancient cathedral vault, frequently to be seen on the European continent under churches or monasteries, and called the crypt.

This church of the Mammoth Cave is a singular phenomenon. The roof, which is not lofty, is supported by a number of pillars, in many places forming Gothic arches, and running at somewhat regular distances, dividing the church into aisles. These columns are actually enormous stalactites, and the fresco of petrified water upon them has all the appearance of the most rich and elaborate carving. In some places the pillars of stone have not quite reached the ground, and remain suspended from the roof. Other and smaller condensed stalactites resembled the drooping rosettes which unite the spring of Gothic arches. In one portion of the church is an enormous stone, carved out exactly like the bishop’s chair, or throne, usually seen on the high altar. The altar itself is very like those primitive stone edifices sculptured by the early Christians, when driven to celebrate their worship in the catacombs of Rome.

This chamber is a marvellous freak of nature imitating art, for the hand of man has never touched it or worked it into shape; yet if any one were transported here unconsciously, he would, on looking round, imagine himself in the chancel crypt of some old cathedral of the ninth or tenth century. Some romantic lovers, evidently influenced by this idea, had actually, a few weeks before our visit, arrived at the cave, accompanied by their friends and the clergyman, and caused the marriage ceremony to be performed in that very church. It was a whimsical idea, and must have been a cold, comfortless, clammy affair; but the feelings and sentiment about weddings totally differ in America from our European notions on the subject,—rarely is it a joyous merry-making, rather the reverse, as I have mentioned in a former chapter.