But the impressions thus received were not produced only by what was seen in and around this strange vault, but by what was heard there besides. The wind penetrated the cavity at some distance, and through some opening that could not be beheld, and was apparently intercepted in its passage, for it whistled upwards towards the entrance in shrill, winding notes, sometimes producing another and nearer sound, resembling the clashing of many small metallic substances violently shaken together. The noise of the wind, as well as the bubbling of the current of the Tiber, seemed to proceed from a greater distance than appeared compatible with the narrow extent of the back part of the temple, and the proximity of the river to its low foundation walls.
It was evident that the vault only reached its outlet after it had wound backwards, underneath the building, in some strange complication of passages or labyrinth of artificial caverns, which might have been built long since as dungeons for the living, or as sepulchres for the dead.
‘The place of the sacrifice–aha! the place of the sacrifice!’ cried the Pagan exultingly, as he drew Numerian to the entrance of the cavity, and solemnly pointed into the darkness beneath.
The father gazed steadily into the chasm, never turning now to look on Antonina, never moving to renew the struggle for freedom. Earthly loves and earthly hopes began to fade away from his heart–he was praying. The solemn words of Christian supplication fell in low, murmuring sounds from his lips, in the place of idolatry and bloodshed, and mingled with the incoherent ejaculations of the madman who kept him captive, and who now bent his glaring eyes on the darkness of the vault, half forgetful, in the gloomy fascination which it exercised even over him, of the prisoners whom he held at its mouth.
The single ray of light, admitted from the circular aperture of the wall, fell wild and fantastic over the widely-differing figures of the three, as they stood so strangely united together before the abyss that opened beneath them. The shadows were above and the shadows were around; there was no light in the ill-omened place but the one vivid ray that streamed over the gaunt figure of Ulpius, as he still pointed into the darkness; over the rigid features of Numerian, praying in the bitterness of expected death; and over the frail youthful form of Antonina as she nestled trembling at her father’s side. It was an unearthly and a solemn scene!
Meanwhile the shadow which the girl had observed on the pavement before the doorway of the temple now appeared there again, but not to retire as before; for, the instant after, Goisvintha stealthily entered the outer apartment of the building left vacant by its first occupants. She passed softly around the pile of idols, looked into the inner recess of the temple, and saw the three figures standing together in the ray of light, gloomy and motionless, before the mouth of the cavity. Her first glance fixed on the Pagan, whom she instinctively doubted and dreaded, whose purpose in keeping captive the father and daughter she could not divine; her next was directed on Antonina.
The girl’s position was a guarded one; still holding her father’s hand, she was partly protected by his body; and stood unconsciously beneath the arm of Ulpius, as it was raised while he grasped Numerian’s shoulder. Marking this, and remembering that Antonina had twice escaped her already, Goisvintha hesitated for a moment, and then, with cautious step and lowering brow, began to retire again towards the doorway of the building. ‘Not yet–not yet the time!’ she muttered, as she resumed her former lurking-place; ‘they stand where the light is over them–the girl is watched and shielded–the two men are still on either side of her! Not yet the moment of the blow; the stroke of the knife must be sure and safe! Sure, for this time she must die by my hand! Safe, for I have other vengeance to wreak besides the vengeance on her! I, who have been patient and cunning since the night when I escaped from Aquileia, will be patient and cunning still! If she passes the door, I slay her as she goes out; if she remains in the temple–‘
At the last word, Goisvintha paused and gazed upward; the setting sun threw its fiery glow over her haggard face; her eye brightened fiercely in the full light as she looked. ‘The darkness is at hand!’ she continued; ‘the night will be thick and black in the dim halls of the temple; I shall see her when she shall not see me!–the darkness is coming; the vengeance is sure!’
She closed her lips, and with fatal perseverance continued to watch and wait, as she had resolutely watched and waited already. The Roman and the Goth; the opposite in sex, nation, and fate; the madman who dreamed of the sanguinary superstitions of Paganism before the temple altar, and the assassin who brooded over the chances of bloodshed beneath the temple portico, were now united in a mysterious identity of expectation, uncommunicated and unsuspected by either–the hour when the sun vanished from the heaven was the hour of the sacrifice for both!
****
There is now a momentary pause in the progress of events. Occurrences to be hereafter related render it necessary to take advantage of this interval to inform the reader of the real nature and use of the vault in the temple wall, the external appearance of which we have already described.
The marking peculiarity in the construction of the Pagan religion may be most aptly compared to the marking peculiarity in the construction of the pagan temples. Both were designed to attract the general eye by the outward effect only, which was in both the false delusive reflection of the inward substance.
In the temple, the people, as they worshipped beneath the long colonnades, or beheld the lofty porticoes from the street, were left to imagine the corresponding majesty and symmetry of the interior of the structure, and were not admitted to discover how grievously it disappointed the brilliant expectations which the exterior was so well calculated to inspire; how little the dark, narrow halls of the idols, the secret vaults and gloomy recesses within, fulfilled the promise of the long flights of steps, the broad extent of pavement, the massive sun-brightened pillars without. So in the religion, the votary was allured by the splendour of processions; by the pomp of auguries; by the poetry of the superstition which peopled his native woods with the sportive Dryads, and the fountains from which he drank with their guardian Naiads; which gave to mountain and lake, to sun and moon and stars, to all things around and above him, their fantastic allegory, or their gracious legend of beauty and love: but beyond this, his first acquaintance with his worship was not permitted to extend, here his initiation concluded. He was kept in ignorance of the dark and dangerous depths which lurked beneath this smooth and attractive surface; he was left to imagine that what was displayed was but the prelude to the future discovery of what was hidden of beauty in the rites of Paganism; he was not admitted to behold the wretched impostures, the loathsome orgies, the hideous incantations, the bloody human sacrifices perpetrated in secret, which made the foul, real substance of the fair exterior form. His first sight of the temple was not less successful in deceiving his eye than his first impression of the religion in deluding his mind.
With these hidden and guilty mysteries of the Pagan worship, the vault before which Ulpius now stood with his captives was intimately connected.
The human sacrifices offered among the Romans were of two kinds; those publicly and those privately performed. The first were of annual recurrence in the early years of the Republic; were prohibited at a later date; were revived by Augustus, who sacrificed his prisoners of war at the altar of Julius Caesar; and were afterwards–though occasionally renewed for particular purposes under some subsequent reigns–wholly abandoned as part of the ceremonies of Paganism during the later periods of the empire.
The sacrifices perpetrated in private were much longer practised. They were connected with the most secret mysteries of the mythology; were concealed from the supervision of government; and lasted probably until the general extinction of heathen superstition in Italy and the provinces.
Many and various were the receptacles constructed for the private immolation of human victims in different parts of the empire–in its crowded cities as well as in its solitary woods–and among all, one of the most remarkable and the longest preserved was the great cavity pierced in the wall of the temple which Ulpius had chosen for his solitary lurking-place in Rome.
It was not merely as a place of concealment for the act of immolation, and for the corpse of the victim, that the vault had been built. A sanguinary artifice had complicated the manner of its construction, by placing in the cavity itself the instrument of the sacrifice; by making it, as it were, not merely the receptacle, but the devourer also of its human prey. At the bottom of the flight of steps leading down into it (the top of which, as we have already observed, was alone visible from the entrance in the temple recess) was fixed the image of a dragon formed in brass.