The clear and brilliant moonlight of Italy enveloped hill and dale, bathing in its effulgence the groves, palaces and ruins of the Eternal City. The huge pile of the Colosseum was bathed in its rosy glow, raising itself in serene majesty towards the beaming night sky.

A few hours later a great change had come over the heavens. The wind had sprung up and had driven the little downy clouds of sunset into a great, black mass, which it again tore into flying tatters that it swept before it. The moon rose and raced through the dun and silver. Below it, in the vast spaces of the deserted amphitheatre, from whose vomitories pale ghosts seemed to flit, the big boulders and rain-left pools looked dim and misty. Night had cast her leper's cloak on nature and the moon seemed the leprous face.

Deepest silence reigned, broken only by the occasional hoot of an owl, or the swishing of a bat that whirled its crazy flight in and out the labyrinthine corridors.

By the largest of these boulders stood the dark cloaked form of a man. As the moon-thrown shadows of the clouds swept over him and the rude rock by which he stood looking up at the sky, his black mantle flapped in the wind and clung to his limbs, making him look even taller than he was.

At the feet of Basil cowered the huge Molossian hound. As the wind grew stronger and the clouds above assumed more fantastic shapes, it raised its head and gave voice to a low whine. On the distant hillocks a myriad dusky flames seemed to writhe and hiss and dart through tinted moon-gleams.

Three times he whistled – and in the misty, moonlit expanse countless forms, as weird as himself, seemed to rise and form a great circle about him.

Were they the creatures of his brain which had at last given way in the excitement of the hour? Were they phantoms of mist and moon, wreathing round him from the desolate marshes? Or were they real beings of flesh and blood, congregations of crime and despair, mad with the misery of a starving century, the horrors of serfdom and oppression that had united in the great reel of a Witches' Sabbat?

Round him they circled, at first slowly, – like the curls of a marsh, then faster and ever faster, till his eyes could scarcely follow them as they rotated about him in their horrible dance of madness and sin.

Black clouds raced over the moon. The reddish gleam of a forked tongue of fire illumined the dark heavens, and thunder went pealing down the hills. Suddenly out of the underbrush arose a black form, about the height and breadth of a man, but without the distinct outlines of one. Basil's face grew white as death, and his gaze became fixed as he clutched at the rock for support. But the next moment he seemed to gain his reassurance from the knowledge that he had seen this phantom before. The dog lay at his feet and continued its low tremulous whine.

"You have kept the tryst," gibbered the bent form as it slowly approached, supporting itself upon a crooked staff of singular height.

"Else were I not the man to compel fate to do my bidding," responded the Grand Chamberlain. "Fear can have no part in the compact which binds us. I have live things under my feet that clog my steps and grow more stubborn day by day." —

"Deem you, you can keep your footing in the black lobbies of hell?" gibbered the cowled form. "For you will need all your courage, if you would reach the goal!"

Basil, for a moment, faced his shadowy interlocutor in silence. There was a darker light in his eyes when he spoke.

"Give me but that which my soul desires and I shall run the gauntlet unflinchingly. I shall brace my courage to the dread experiment."

A fierce gust of wind shook the cypresses and holm oaks into shuddering anxiety.

"You are about to embark upon an enterprise more perilous than any man now living has ever ventured upon," spoke the cowled form. "Your soul will travel through the channels, through which the red and fiery tide rolls up when the volcano wakes. Each time it wakes the lava washes over the lost souls, which, chained to rings in the black rock, glow like living coals, but leaves them whole, to undergo their fate anew. Do you persist?"

"Give me what I desire – "

"Ay – so say they all – but to grovel in the dust before the Unknown Presence which they have defied."

"Who are you to taunt me with a fear my soul knows not?" Basil turned to the black-robed form, stretching out his hand as if to touch his mantle.

A magnetic current passed through his limbs that caused him to drop his arm with a cry of pain.

Forked lightnings leaped from one cloud-bank to another.

Distant thunder growled and died among the hills.

"I have seen the fall of Nineveh and Babylon. I was present at the destruction of the Holy City by the legions of Titus, I witnessed the burning of Rome by Nero and the fall of the temple of Serapis. I stood upon Mount Calvary under the shadow of the world's greatest tragedy."

The voice of the speaker died to silence.

Basil's hand went to his head, as if he wished to assure himself whether he was awake or in the throes of some mad dream.

It is a narrow boundary line, that divides the two great realms of sanity and madness. And the limits are as restless as those of two countries divided from each other by a network of shifting rivers. What belonged to the one overnight may belong to the other to-morrow.

An overmastering dread had seized upon Basil at the speech of the uncanny apparition. Was not he, too, pushing his excursions now into the one realm, now into the other? And who would know in which of the two to seek for him?

"Have you indeed wandered upon earth ever since those days?" he stammered, once more slave to his superstition.

The apparition nodded.

"I have drunk deep from the black wells of despair. I have raised the shadowy altars of him who was cast out of the heavens, higher and higher, till they almost touch the throne of the Father."

"Your master then is Lucifer – "

"Cannot the Fiend as well as God live incarnate in human clay? Is not the earth the meeting ground of Heaven and Hell? Why should not Basil, the Grand Chamberlain, be Hell's incarnation?" —

"What then must I do to deserve the crimson aureole?"

"Espouse the cause of him who rules the shadows. He will give to you what your soul desires. One of the shadowy congregation that rules the world through fear, make quick wings for Time, that crawls through eternity like a monstrous snake, while with starved desire your eyes glare at the fleeting things of life – dominion, power and love, that you may snatch from fate! Only by becoming one of us can your soul slake its thirst. Speak – for my time is brief – "

When Basil turned towards the bent form of the speaker his gaze fell upon a gleaming knife which Bessarion had produced from under the loose folds of his gown.

For a moment the two stood face to face. Neither spoke, each seemingly intent upon fathoming the thoughts of the other. The wind hissed and screamed through the corridors of the Colosseum.

It was Basil who broke the silence.

"What is it, you want?"

"Bare your left arm!"

There was a natural hollow in the rock, that the weather had scooped out in the stone altar.

Basil obeyed.

The gibbering voice rose again above the silence.

"Hold it over the basin!"

The lightnings twisted and streamed like silvery adders through the dark vaults of the heavens, and terrific peals of thunder shook the shuddering world in its foundations.

The bent form raised the knife.

Three drops of blood dripped, one by one, into the hollow of the stone.

Bessarion chanted some words in an unintelligible jargon as, with a claw-like hand, he bound up the wound in Basil's arm.

"At midnight – in the Catacombs of St. Calixtus – you will stand face to face with the Presence," the apparition spoke once more.

The next moment, after a fantastic salutation, he had vanished, as if the earth had swallowed him, behind a projecting rock.

Basil remained for a time in deep rumination. The Molossian hound rose up from the ground as soon as the adept of the black arts had disappeared, and, sitting on its haunches, gazed inquisitively into its master's face.

Suddenly it uttered a growl.

At the next moment the misshapen form of an African Moor crouched at the feet of the Grand Chamberlain. Noiselessly and swiftly as a panther he had sped through the waste spaces of the amphitheatre, and even Basil could not overcome a feeling of revulsion as he gazed into the hairy, bestial features of Daoud, whom he employed when secrecy and despatch were essential to the success of a venture.

Red inflamed eyelids gleamed from a face whose cadaverous tints seemed enhanced by wiry black hair that hung in disordered strands from under a broad Spanish hat. Daoud was undersized in stature, but possessed prodigious strength, and the size of his hands argued little in favor of him who had incurred the disfavor of his master or his own.

This monster in human guise Basil had acquired from a certain nobleman in the suite of the Byzantine ambassador extraordinary to the Holy See.

Basil looked up at the moon which just then emerged from the shadow of a cloud. Then he gave a nod of satisfaction.

"Your promptness argues well for your success," he turned to his runner who was cowering at his feet, the ashen face with the blinking and inflamed eyes raised to his master. "Know you the road to southward, my good Daoud?"

The Moor gave a nod and Basil proceeded.

"You must depart this very night. Take the road that leads by Benevento to the Shrines of the Archangel. You will overtake the Senator and deliver into his hands this token. You will return forthwith and bring to me – his answer. Do I make myself quite clear to your understanding, my good Daoud?"

The Moor fell prostrate and touched Basil's buskin with his forehead.

"Up!" the latter spurned the kneeling brute. "To-morrow night must find you in the Witches' City."

With these words he placed into the Moor's hand a small article, carefully tied and sealed.

The twain exchanged a mute glance of mutual understanding, then Daoud gave a bound, darted forward and shot away like an arrow from the bow. Almost instantly he was out of sight.

The hound bounded after him but, obedient to his master's call, instantly returned to the latter's feet.

For some time Basil remained near the rock where the weird ceremony had taken place.

"The Rubicon is passed," he muttered. "The stars – or the abyss."

Then, slowly quitting the stupendous ruins of the Amphitheatre, he took the direction of the Catacombs of St. Calixtus.

CHAPTER VII
THE FACE IN THE PANEL

On the following day Tristan entered upon his duties as captain of the Senator's guard.

The first person upon whom he chanced on his rounds at the Lateran was the Grand Chamberlain, who inquired affably how his penitences were progressing and expressed the hope that he had received final absolution, and that his sins would not weigh too heavily upon his soul. Basil commended him for his zeal in the cause of the Senator, hinting incidentally that his duties between the Lateran and Castel San Angelo need not deprive him of the society of the fair Roman ladies, who would welcome the stranger from Provence and would doubtlessly enmesh his heart, if it were not well guarded. He then proceeded to caution Tristan with respect to his exalted prisoner. Numerous attempts at abduction had been made from time to time, Tristan having, by his prowess and daring, prevented the last, emanating doubtlessly from the Pontiff's nearest kith and kin. The men under him could be fully relied upon. Nevertheless, it behooved him to be circumspect.

After a time Basil departed, and Tristan went about his business, inspecting the guard and familiarizing himself with the place where he was to keep his first watch.

The level beams of the evening sun filled the Basilica of St. John in Laterano. There were pearl lights and lights of sapphire; falling radiances of emerald and blood-red; vague translucent greens, that seemed to tremble under spiral clouds of incense.

Now the sun was sinking behind Mount Janiculum. The clouds at the zenith of the heavens were rose-hued, but it was growing dark in the valleys, and the great church began to take on sombre hues. It seemed to frown upon him, to warn him not to enter, an impression he was long afterwards to remember, as he strode through the high-vaulted corridors.

He hesitated, till the sound of a distant chant reached his ear. With a sort of fascination he could not account for, he watched the advance of the slowly gathering gloom, as an increasing greyness stole into the chapels.

Evening was about to take the veil of night.

The light left the stained-glass windows and the church grew darker and darker. The altar steps lay now in purple shadows that were growing deeper and denser each moment.

Shadowy forms seemed to be moving about in the sanctuaries. Soon a monk entered with a taper, lighting the lights before some remote shrines. Tristan could not distinguish his features, for the light was very dim. Yet it enabled him to see that there were a few belated worshippers in the church.

After a time the great nave was deserted. As the lone monk passed quickly through a sphere of thin light, Tristan gave a start. It seemed a ghost in a cassock that had vanished in the sacristy. He told himself that the impression was absurd, but he could not throw it off. He had caught a momentary glimpse of a face that had no human likeness, and the way in which the cassock had flapped about the limbs of the fleeting form seemed to suggest that it clothed a frame that had lost its flesh.

Superstitious fear began to creep over him. He felt that he must seek the open, escape the haunting incense-saturated pall, these dim sepulchral chapels. Such light as there was, save what emanated from the candles on the altar, came from a stone lamp which cast its glimmer on the vanishing form.

In every corner of the vast nave now lay fast gathering darkness. The figures of the saints seemed vague and formless. The altar loomed dim in the shadows.

All these things Tristan noted.

The whole interior of the church was now steeped in the dense pall of night, illumined only by the faint radiance of the lamp upon the altar, which seemed rather to intensify than to lift the gloom.

A faint footfall was audible behind the carven screen, near the entrance to the chapels. A figure, almost lost in the gloom, glided into the nave, and shadows were falling about him like thin veils.

It was an unusual hour for monks to be abroad. None the less, he seemed sure of himself, for he proceeded without hesitation to the altar, shrouded as it was in utter darkness, but for the light of one faint taper, which gleamed afar, like a star in the nocturnal heavens, driving the gloom a few paces from the carven stone. There the shrouded form seemed to melt into the very pall of night that weighed heavily upon the time-stained walls of the Mother Church of Rome.

At first Tristan thought it was some belated penitent seeking forgiveness for his sins, but when the dark-robed form did not return he strode towards the altar to see if he might perchance be of assistance to him.

When Tristan reached the altar steps he could discover no trace of a human being, though he searched every nook and corner and peered into every chapel, examined every shrine.

Seized with a strange restiveness he began to pace up and down before the altar steps. He was far from feeling at ease. He remembered the warning of the Grand Chamberlain. He remembered the strange tales he had heard whispered of the Pontiff's prison house.

Tristan suddenly paused.

He thought he heard sibilant whispers and the low murmur of voices from behind the screen at the eastern transept of the Capella, and at once he began assembling the things in his mind which might beset him in the hour of darkness.

The Chapel of the Most Holy Saviour of the Holy Stairs, the Scala Santa of the present day, adjoins the Lateran Church. At the period of which we write it was still the private chapel of the popes in the Patriarchium, and was called the Sancta Sanctorum on account of the great number of precious relics it enshrines.

To this chapel Tristan directed his steps, oppressed by some mysterious sense of evil. By a judicious disposition of the men under his command he had, after a careful survey of the premises, placed them in such a manner that it would be impossible for any one to gain access to the stairs leading to the Pontiff's chamber.

Had it been a hallucination of his senses conjured up by his sudden fear?

Not a sound broke the stillness. Only the echoes of his own footsteps reverberated uncannily from the worn mosaics of the floor. In the dim distance of the corridors he saw a shadow moving to and fro. It was the guard before the entrance to a side-chapel of the Basilica.

What caused Tristan to pause in the night gloom of the corridor leading to the Pontifical Chapel he did not know. He seemed as under a strange spell. At a distance from him of some five feet, in the decorated wall, there was a dark panel some two feet in height and of corresponding breadth, looking obliquely towards the Pontifical Chapel. The panel contained a small round opening, a spy-hole which communicated with a secret chamber in the thickness of the wall.

A slight rustling noise came from behind the masonry. Tristan heard it quite distinctly. It suggested the passing of naked feet over marble.

Suddenly, noiselessly the panel parted.

A sudden gleam of white, blinding light shot into the chapel like a spear of silver.

Tristan paused with a start, looking swiftly and inquiringly at the black slit in the wall and as he did so the spear of light shifted a little in its passing.

A face, white with the pallor of death, ghastly and hideous as a corpse that has retained upon its set features the agony of dying, peered out from blackness into blackness.

A tremor shook Tristan's frame from head to toe. He could not have cried out, had he wished to. He felt as one grazed by a lightning bolt. Then, in a flash that made his heart and soul shudder within him, he knew.

He had seen looking at him a face – the clean shaven face of a man. But it was not human. It bore the terrible stigmata of the unquenchable fire; an abominable vision of the lust that cannot be satiated, the utter, unconquerable, fiendish malevolence of Hell. A harsh, raven-like croak broke the stillness, and at the sound of that cry the terrible face vanished with the swiftness of a trick. Instead, a long arm, clothed in a black sleeve, stole through the opening. A flash, keen as that of the lightning, cut the air and a dagger struck the mosaic floor at Tristan's feet with such force that its point snapped after shattering the stone, drawing fire from the impact.

Bounding back, Tristan uttered a shrill cry of terror, but when he looked in the direction of the panel only dim dun dusk met his eyes.

Rushing frantically from the corridor he now called with all his might. His outcries brought the guards to the scene. Briefly, incoherently, almost mad with terror, he told his tale. They listened with an air of amazement in which surprise held no small share. Then they accompanied him back to the chapel.

Arriving near the spot he was about to point to the dagger, to corroborate his wild tale. But the dagger had disappeared. Only the shattered marble of the floor lent testimony and credence to his words.

On the following morning an outcry of horror arose from all quarters of Rome.

On the night which preceded it, the Holy Host had been taken from the Pontifical Chapel in the Lateran.

CHAPTER VIII
THE SHADOW OF ASRAEL

It was ten in the morning.

Deep silence reigned in the strange walled garden on the Pincian Hill that surrounded the marble villa of the Grand Chamberlain. Only the murmur of the city below and the soft sounds of bells from tower and campanile seemed to break the dreamlike stillness as they began to toll for High Mass.

In a circular chamber lighted only by lamps, for there were no windows, and daylight never penetrated there, before an onyx table covered with strange globes and philtres, sat Basil.

The walls of the chamber were of wood stained purple. The far wall was hidden by shelves on which were many rolls of vellum and papyrus, spoils of pagan libraries of the past. There were the works of monks from all the monasteries of Europe, illuminated by master hands, the black letter pages glowing with red and gold, almost priceless even then. In one corner of the room stood an iron chest, secured by locks. What this contained no one even dared to guess.

As the chimes from churches and convents reached his ears, Basil's face paled. Something began to stir in the dark unfathomable eyes as some unknown thing stirs in deep water. Some nameless being was looking out of those windows of the soul. Yet the rest of the face was unruffled and expressionless, and the contrast was so horrible that a spectator would have shrank away, cold fear gripping his heart, and perhaps a cry upon his lips.

Basil had closed the heavy bronze doors behind him when he had entered from the atrium. The floor of colored marbles was flooded with the light from the bronze lamps. Before him was a short passage, hardly more than an alcove, terminating in a door of cedarwood behind a purple curtain.

In the dull yellow gleam of the lamps the chamber seemed cold, full of chill and musty air.

In a moment however the lamps seemed to burn more brightly, as Basil's eyes became adjusted to their lights.

There was the silence of the tomb. The lamps burnt without a flicker, for there was not a breath of air to disturb their steady glow. The plan of the room, its yellow lights, its silence, its entire lack of correspondence with the outside world, was Basil's own. He had designed it as a port, as it were, whence to put out to sea upon the tide of his ever-changing moods in the black barque of sin.

For some time he remained alone in the silent room, dreaming and brooding over greatness and power, that terrible megalomania that is the last and rarest madness of all.

He had read of Caligula, Nero, and Domitian, of Heliogabalus, whose madness passed the bounds of the imaginable. Like gold and purple clouds, bursting with sombre light and power, they had passed over Rome and were gone.

Then thoughts of the popes came to him, those supreme rulers of the temporal and spiritual world whose dominion had been so superb, since they first began to crown the emperors, one hundred and thirty-five years ago.

In a monstrous and swiftly moving panorama they passed through a brain that worked as if it were packed in ice. And yet one and all had gone into the dark. The power of none had been lasting and complete.

But into his reverie stole a secret glow, into his blood an intense, ecstatic quickening. For them the hour had tolled. Each step in life was but one nearer the grave. Not so was it to be with him.

A black fire began to burn round his heart, coiling there like a serpent, as he thought of the illumination that was his, the promise he had received – deep down in the crypts of the Emperor's Tomb and again in the Catacombs of St. Calixtus. And he had fallen down and worshipped, had given his soul to Darkness and abjured the Light.

Satan should rule again on earth. For this had been revealed to him by the High Priest of Satan himself, then in a vision by the Lord of Evil. To penetrate the mysteries of Hell with his whole heart and soul, to strike chill terror into the hearts of those who worshipped at the altars of Christ, had become Basil's ambition for which he would live and die.

Basil sat dreaming and gloating over his coming glory; a glory in which the woman whose beauty had stung him with maddening desire should share, even if he had to drag her before the dark throne upon which sat the Unspeakable Presence. The yellow light of the lamps fell upon his unnatural and mask-like face as he sat rigid in his chair hypnotized by Hell.

Christ had thrown his great Cross upon the feasts and banquets of the gods. On his head was a crown of thorns and the Stigmata upon his hands and feet. And the goblets of red gold had lost their brightness. The pagan gods were stricken dumb. They had faded away in vapor and were gone.

And with them the fierce joy of living had left the world. Christ reigned upon earth, implanting conscience in the souls of men, that robbed ecstasy of its fruition and infused the most delicious cup touched with the Aliquid Amari of the poet.

Basil paced the narrow confines of the room, and from his lips came the opening stanza of that dreadful parody of the Good Friday hymn sung by the votaries of Satan: "Vexilla Regis Prodeunt Inferni."

Already the banners of the advancing hosts were in the sky. Soon – soon would he appear himself – the Lord of Darkness!

The room suddenly grew very chill, as if the three dread winds of Cocytus were blowing through the chamber.

There was a slim rod of copper suspended from the wall, close to the couch of dull grey damask upon which he had been reclining. He pulled it and somewhere away in the villa a gong sounded. A moment later a drab man, lean as a skeleton and bald as an egg, with slanting eyes in an ashen face and a stooping gait, came gliding noiselessly into the lamplit room. He wore a long black cassock, which covered his fleshless form from head to toe.

"Has no one called?" Basil turned to his factotum.

"A stranger," came the sepulchral reply. "He bade me give you this!"

Basil took the scroll which his famulus handed to him and cut the cord.

A fiendish smile passed over his face and lighted up the dark, sinister eyes. But quickly as the mood had come it left. It fell from him as a dropped cloak.

He stood upright, supporting himself on the onyx table, while Horus, who only understood in a dull dim way his master's moods, assisting him in all his villainies, but confessing his own share to a household priest, stood impassively by.

"Give me some wine!" Basil turned to the sinister Major Domo, and the latter disappeared and returned with a jug of Malvasian.

The Grand Chamberlain grasped the jug which Horus had brought him and held it with shaking fingers to his mouth. When he had drank deep he dismissed his famulus, struck a flint and burnt the scroll to pallid ashes. Then he staggered out into the hall of colored marbles and through it to the garden doors.

The bronze gates trembled as they swung back upon their hinges, and as the full noon of the quiet garden burst upon Basil's eyes he fancied he saw the fold of a dark robe disappear among the cypresses.

And now the hot air of high noon wrapped him round with its warm southern life, flowing over the lithe body within the silken doublet, drawing away the inward darkness and the vaulting flames within his soul and reminding his sensuous nature that the future held gigantic promise of love and power.

The great tenor and alto bells of St. John in Lateran were beating the echoes to silver far away. The roofs and palaces, domes and towers of Rome, were bathed in sunlight as he advanced to the embrasure in the wall and once more surveyed the city.

The heat shimmered down and, through the quivering sunlit air, the colors of the buildings shone like pebbles at the bottom of a pool and the white ruins glowed like a mirage of the desert.

An hour later, regardless of the vertical sun rays that beat down upon the tortuous streets of the city with unabated fervor, the Grand Chamberlain rode through the streets of Rome, attended by a group of men-at-arms with the crest of the Broken Spear in a Field of Azure embroidered upon their doublets.

As the cavalcade swept through the crowded streets, with their pilgrims from all parts of the world, the religious in their habits, men-at-arms, flower-sellers, here and there the magnificent chariot of a cardinal, many of the people lowered their eyes as Basil cantered past on his black Neapolitan charger, trapped with crimson. More than one made the sign of the horn, to avert the spell of the evil eye.

When Basil reached the Lateran he found a captain of the noble guard with two halberdiers in their unsightly liveries guarding the doors. They saluted and Basil inquired whether the new captain of the guard was within.

"The Lord Tristan is within," came the reply, and Basil entered, motioning to his escort to await his return outside.

The Grand Chamberlain traversed several anterooms, speaking to one or the other of the senatorial guard, and on every face he read consternation and fear. Little groups of priests stood together in corners, whispering among each other; the whole of the Lateran was aroused as by a secret dread. Such deeds, though they were known to have occurred, were never spoken of, and the priests of the various churches that had suffered desecration wisely kept their own counsel.

In this, the darkest age in the history of Rome, when crime and lust and murder lurked in every corner, an outrage such as this struck every soul with horror and awe. It was unthinkable, unspeakable almost, suggesting dark mysteries and hidden infamies of Hell, which caused the blood to run cold and the heart to freeze.

When Basil had made his way through the crowded corridors, receiving homage, though men looked askance at him as he passed, he came to a chamber usually reserved for a waiting room in times when the Pontiff received foreign envoys or members of the priesthood and nobility; a privilege from which the unfortunate prisoner in the Lateran was to be forever debarred.

Basil entered this chamber, giving orders that he was to be in no wise disturbed until he called and those outside heard him lock and bar the door from within.

In the exact centre of the wall, reaching within two feet of the ground, there was a large picture of St. Sebastian, barbarously painted by some unknown artist.