A ten minutes’ walk brought us to the shores of Lake Avernus—the “Tartarus” of Virgil. This was classic ground indeed, and we hoped to have found a thumbed copy of the Æneid in the pocket of the cicerone. He had not even heard of the poet. A ruin on the opposite shore, reflected in the still dark water, is supposed to have been a temple dedicated to Proserpine. If she was allowed to be present at her own worship, she might have been consoled for her abduction. A spot of more secluded loveliness could scarce be found. The lake lay like a sheet of silver at the foot of the ruined temple, the water looking unfathomably deep through the clear reflection, and the fringes of low shrubbery leaning down on every side, were doubled in the bright mirror, the likeness even fairer than the reality.
Our unsentimental guide hurried us away as we were seating ourselves upon the banks, and we struck into a narrow footpath of wild shrubbery which circled the lake, and in a few minutes stood before the door of a grotto sunk in the side of the hill. Here dwelt the Cumæan sybil, and by this dark passage, the souls of the ancients passed from Tartarus to Elysium. The guide struck a light and kindled two large torches, and we followed him into the narrow cavern, walking downward at a rapid pace for ten or fifteen minutes. With a turn to the right, we stood before a low archway which the guide entered, up to his knees in water at the first step. It looked like the mouth of an abyss, and the ladies refused to go on. Six or seven stout fellows had followed us in, and the guide assured us we should be safe on their backs. I mounted first myself to carry the torch, and holding my head very low, we went plunging on, turning to the right and left through a crooked passage, dark as Erebus, till I was set down on a raised ledge called the Sibyl’s bed. The lady behind me, I soon discovered by her screams, had not made so prosperous a voyage. She had insisted on being taken up something in the side-saddle fashion; and the man, not accustomed to hold so heavy a burden on his hip with one arm, had stumbled and let her slip up to her knees in water. He took her up immediately, in his own homely but safer fashion, and she was soon set beside me on the sibyl’s stony couch, dripping with water, and quite out of temper with antiquities.
The rest of the party followed, and the guide lifted the torches to the dripping roof of the cavern, and showed us the remains of beautiful mosaic with which the place was once evidently encrusted. Whatever truth there may be in the existence of the sybil, these had been, doubtlessly, luxurious baths, and probably devoted by the Roman emperors to secret licentiousness. The guide pointed out to us a small perforation in the rear of the sybil’s bed, whence, he said (by what authority I know not), Caligula used to watch the lavations of the nymph. It communicates with an outer chamber.
We reappeared, our nostrils edged with black from the smoke of the torches, and the ladies’ dresses in a melancholy plight, between smoke and water. It would be a witch of a sybil that would tempt us to repeat our visit.
We retraced our steps, and embarked for Nero’s villa. It was perhaps a half mile further down the bay. The only remains of it were some vapour baths, built over a boiling spring which extended under the sea. One of our boatmen waded first a few feet into the surf, and plunging under the cold sea-water, brought up a handful of warm gravel—the evidence of a submarine outlet from the springs beyond. We then mounted a high and ruined flight of steps, and entered a series of chambers dug out of the rock, where an old man was stripping off his shirt, to go through the usual process of taking eggs down to boil in the fountain. He took his bucket, drew a long breath of fresh air, and rushed away by a dark passage, whence he reappeared in three or four minutes, the eggs boiled, and the perspiration streaming from his body like rain. He set the bucket down, and rushed to the door, gasping as if from suffocation. The eggs were boiled hard, but the distress of the old man, and the danger of such sudden changes of atmosphere to his health, quite destroyed our pleasure at the phenomenon.
Hence to the cape of Misenum, the curve of the bay presents one continuation of Roman villas. And certainly there was not probably in the world, a place more adapted to the luxury of which it was the scene. These natural baths, the many mineral waters, the balmy climate, the fertile soil, the lovely scenery, the matchless curve of the shore from Pozzuoli to the cape, and the vicinity, by that wonderful subterranean passage, to a populous capital on the other side of a range of mountains, rendered Baiæ a natural paradise to the emperors. It was improved as we see. Temples to Venus, Diana, and Mercury, the villas of Marius, of Hortensius, of Cæsar, of Lucullus, and others whose masters are disputed, follow each other in rival beauty of situation. The ruins are not much now, except the temple of Venus, which is one of the most picturesque fragments of antiquity I have ever seen. The long vines hang through the rent in its circular roof, and the bright flowers cling to the crevices in its still half-splendid walls with the very poetry of decay. Our guide here proposed a lunch. We sat down on the immense stone which has fallen from the ceiling, and in a few minutes the rough table was spread with a hundred open oysters from Fusaro (near Lake Avernus), bottles at will of lagrima Christi from Vesuvius, boiled crabs from the shore beneath the temple of Mercury, fish from the Lucrine lake, and bread from Pozzuoli. The meal was not less classic than refreshing. We drank to the goddess (the only one in mythology, by the way, whose worship has not fallen into contempt), and leaving twenty ragged descendants of ancient Baiæ to feast on the remains, mounted our donkeys and started over land for Elysium.
We passed the villa of Hortensius, to which Nero invited his mother, with the design of murdering her, visited the immense subterranean chambers in which water was kept for the Roman fleet, the horrid prisons called the Cento Camerelle of the emperors, and then rising the hill at the extremity of the cape, the Stygian lake lay off on the right, a broad and gloomy pool, and around its banks spread the Elysian fields, the very home and centre of classic fable. An overflowed marsh, and an adjacent corn-field will give you a perfect idea of it. The sun was setting while we swallowed our disappointment, and we turned our donkeys’ heads toward Naples.
We left the city again this morning by the grotto of Posilipo to visit the celebrated Grotto del Cane. It is about three miles off, on the borders of a pretty lake, once the crater of a volcano. On the way there arose a violent debate in the party on the propriety of subjecting the poor dogs to the distress of the common experiment. We had not yet decided the point when we stopped before the door of the keeper’s house. Two miserable-looking terriers had set up a howl, accompanied with a ferocious and half-complaining bark, from our first appearance around the turn of the road, and the appeal was effectual. We dismounted and walking toward the grotto, determined to refuse to see the phenomenon. Our scruples were unnecessary. The door was surrounded with another party less merciful, and as we approached, two dogs were dragged out by the heels, and thrown lifeless on the grass. We gathered round them, and while the old woman coolly locked the door of the grotto, the poor animals began to kick, and after a few convulsions, struggled to their feet and crept feebly away. Fresh dogs were offered to our party, but we contented ourselves with the more innocent experiments. The mephitic air of this cave rises to a foot above the surface of the ground, and a torch put into it was immediately extinguished. It has been described too often, however, to need a repetition. We took a long stroll around the lake, which was covered with wild-fowl, visited the remains of a villa of Lucullus on the opposite shore, and returned to Naples to dinner.