The situation now offered the reader is worth a pause, if only to fix it in mind.

Constantine and Mahommed, soon to be contestants in war, are coming face to face, lovers both of the same woman. The romance is obvious; yet it is heightened by another circumstance. One of them is in danger.

We of course know Aboo-Obeidah, the Singing Sheik, is Prince Mahommed in disguise; we know the Prince also as heir of Amurath the Sultan, a very old man liable to vacate place and life at any moment. Suppose now the rash adventurer--the term fits the youth truly as if he were without rank--should be discovered and denounced to the Emperor. The consequences can only be treated conjecturally.

In the first place, to what extremities the Prince would be put in explaining his presence there. He could plead the invitation of the Princess Irene. But his rival would be his judge, and the judge might find it convenient to laugh at the truth, and rest his decision on the prisoner's disguise, in connection with his own presence--two facts sufficiently important to serve the most extreme accusation.

Constantine, next, was a knightly monarch who knew to live nobly, and dared die as he lived; yet, thinking of what he might do with Mahommed fallen into his hands under circumstances so peculiar, there was never a Caesar not the slave of policy. In the audience to Manuel the sailor, we have seen how keenly sensitive he was to the contraction the empire had suffered. Since that day, to be sure, he had managed to keep the territory he came to; none the less, he felt the Turk to whom the stolen provinces invariably fell was his enemy, and that truce or treaty with him did not avail to loosen the compression steadily growing around his capital. Over and over, daytime and night, the unhappy Emperor pondered the story of the daughter of Tantalus; and often, starting from dreams in which the Ottoman power was a serpent slowly crawling to its victim, he would cry in real agony--"O Constantinople--Niobe! Who can save thee but God? And if He will not--alas, alas!" The feeling thus engendered was not of a kind to yield readily to generosity. Mahommed once securely his, everything might be let go--truth, honor, glory--everything but the terms of advantage purchasable with such an hostage.

The invitation to the imaginary Sheik had been a last act of grace by Irene, about to embark for the city. Mahommed, when he accepted, knew Therapia by report a village very ancient historically, but decaying, and now little more than a summer resort and depot of supplies for fishermen. That its proverbial quietude would be disturbed, and the sleepy blood of its inhabitants aroused, by a royal galley anchoring in the bay to discharge the personnel of the empire itself, could have had no place in his anticipations. So when he stepped into a boat, the Aboo-Obeidah of his eulogy, and suffered himself, without an attendant, to be ferried across to Roumeli-Hissar; when he there took an humble wherry of two oars, and bade the unliveried Greeks who served them pull for Therapia, it was to see again the woman who was taking his fancy into possession, not Constantine and his court bizarre in splendor and habitude. In other words, Mahommed on setting out had no idea of danger. Love, or something very like it, was his sole inspiration.

The trireme, with the white cross on its red sail, its deck a martial and courtly spectacle, had been reported to him as the hundred and twenty flashing scarlet blades, in their operation a miracle of unity, whisked it by the old Castle, and he had come forth to see it. Where are they going? he asked those around him; and they, familiar with the Bosphorus, its shipping and navigation, answered unanimously, To exercise her crew up in the Black Sea; and thinking of the breadth of the dark blue fields there, the reply commended itself, and he dismissed the subject.

The course chosen by his boatmen when they put off from Roumeli-Hissar kept him close to the European shore, which he had leisure to study. Then, as now, it was more favored than its Asiatic opposite. The winds from the sea, southward blowing, unloaded their mists to vivify its ivy and myrtle. The sunlight, tarrying longest over its pine-clad summits, coaxed habitations along the shore; here, a palace; there, under an overhanging cliff, a hamlet; yonder, a long extended village complaisantly adapting itself to the curvatures of the brief margin left it for occupancy. Wherever along the front of the heights and on the top there was room for a field the advantage had been seized. So the Prince had offered him the sight of all others most significant of peace among men--sight of farmers tilling the soil. With the lucid sky above him summer-laden, the water under and about him a liquid atmosphere, the broken mountain-face changing from lovely to lovelier, and occasionally awakening him with a superlative splendor, the abodes so near, and the orchards and strawberry and melon patches overhead, symbolizing goodwill and fraternity and happiness amongst the poor and humble--with these, and the rhythmic beating of the oars to soothe his spirit, fierce and mandatory even in youth, he went, the time divided between views fair enough for the most rapturous dreams, and the Greek, of whom, with all their brightness, they were but dim suggestions. Past the stream-riven gorge of Balta-Liman he went; past Emirghian; past the haven of Stenia, and the long shore-town of Yenikeui; then, half turning the Keuibachi bend, lo! Therapia, draggling down the stony steep, like a heap of bangles on a brown-red cheek. And there, in the soft embracement of the bay, a bird with folded wings asleep--the trireme!

The sight startled the Prince. He spoke to the rowers, and they ceased fighting the current, and with their chins over their shoulders, looked whither he pointed. From ship to shore he looked; then, pursuing the curve inland to the bridge at the upper end; thence down what may be called the western side, he beheld people crowding between a quay and a red kiosk over which pended a wooded promontory.

"There is a Princess living in this vicinity," said he to one of the rowers, slightly lifting the handkerchief from his face. "Where is her palace?"

"In the garden yonder. You see the gate over the heads of the men and women."

"What is her name?"

"Princess Irene. She is known on this shore as the Good Princess."

"Irene--a sound pleasant to the ear"--Mahommed muttered. "Why is she called good?"

"Because she is an angel of mercy to the poor."

"That is not usual with the great and rich," he said next, yielding to a charm in the encomiums.

"Yes," the boatman responded, "she is great, being akin to the Emperor, and rich, too, though"--

Here the man broke off to assist in bringing the boat back from its recession with the current, at this point boisterously swift.

"You were saying the Princess is rich," Mahommed said, when the oars were again at rest.

"Oh, yes! But I cannot tell you, my friend, how many are partners in her wealth. Every widow and orphan who can get to her comes away with a portion. Isn't it so?"

His companion grunted affirmatively, adding: "Down yonder a man with a crooked back lives in an arched cell opening on the water. Perhaps the stranger saw it as he came up."

"Yes," Mahommed answered.

"Well, in the back part of the cell he has an altar with a crucifix and a picture of the Blessed Mother on it, and he keeps a candle burning before them day and night--something he could not do if we did not help him, for candles of wax are costly. He has named the altar after the Princess, Sta. Irene. We often stop and go in there to pray; and I have heard the blessings in the light of that candle are rich and many as the Patriarch has for sale in Sta. Sophia."

These praises touched Mahommed; for, exalted as he was in station, he was aware of the proneness of the poor to berate the rich and grumble at the great, and that such had been a habit with them from the commencement of the world. Again the boat slipped down the current; when it was brought back, he asked: "When did the ship yonder come up?"

"This morning."

"Oh, yes! I saw it then, but thought the crew were being taken to the sea for practice."

"No," the boatman replied, "it is the state galley of His Majesty the Emperor. Did you not see him? He sat on the throne with all his ministers and court around him."

Mahommed was startled.

"Where is the Emperor now?" he inquired.

"I should say, seeing the crowd yonder, that His Majesty is in the palace with the Princess."

"Yes," said the second rower, "they are waiting to see him come out."

"Row out into the bay. I should like to have the view from that quarter."

While making the detour, Mahommed reflected. Naturally he remembered himself the son of Amurath; after which it was easy to marshal the consequences of exposure, if he persisted in his venture. He saw distinctly how his capture would be a basis of vast bargaining with his father, or, if the sturdy old warrior preferred revenge to payment of a ruinous ransom, how the succession and throne might slip to another, leaving him a prisoner for life.

Yet another matter presented itself to him which the reader may decide worthy a separate paragraph. Its mention has been waiting this opportunity. The Prince from Magnesia, his seat of government, was on the way to Adrianople, called thither by his father, who had chosen a bride for him, daughter of a renowned Emir. Regularly he would have crossed the Hellespont at Gallipoli; a whim, however, took him to the White Castle--whim or destiny, one being about as satisfactory as the other. Pondering silently whether it were not best to return, he thought, apropos the Princess Irene, of the nuptials to be celebrated, and of his bride expectant; and a Christian, pausing over the suggestion, may be disposed to condemn him for inconstancy.

In countries where many wives are allowed the same husband he is not required to love any of them. Indeed, his fourth spouse may be the first to command him; hers the eyes for his enslavement; hers the voice of the charmer charming both wisely and forever. Mahommed did now think of the Emir's daughter, but not with compunction, nor even in comparison. He had never seen her face, and would not until after the wedding days. He thought of her but to put her aside; she could not be as this Christian was, neither so accomplished nor courtly; besides which, it was dawning upon him that there were graces of mind and soul as well as of person, while perfection was a combination of all the graces in equal degree. Gleams of the latter had visited him while gazing into the radiant face of the Emperor's kinswoman; and how, at such favoring times, his fancy had gone out to her and come back warmed, enlivened, glorified! There is a passion of the mind and a passion of the blood; and though one and one make two, two is still a multiple of one.

Looking thus at the galley, Mahommed thought of the tales in the East not less common than in the West, and believed in them faithfully, for chivalry was merely on the wane--tales of beauteous damsels shut up in caves or adamantine castles, with guardian lions couchant at the gates, and of well-sworded heroes who marched boldly up to the brutes, and slew them, and delivered the captives always with reward. Of course, in making the application, the Princess was the prisoner, the ship the lion, and himself--well, in want of a sword, he laid hand upon his dagger, precisely as a liberating knight up to the ideal would do.

Nor was this all. The revelations of the Prince of India were still fresh to him. He wished to see his competitor. How did he look? Was there enough of him to make battle? He smiled thinking of the pleasure there would be in slyly studying the Princess and the Emperor at the same time. He drew the handkerchief down, looked at his brown-stained hands, and adjusted the folds of his burnoose. The disguise was perfect.

"Take me to the landing--there before the gate of the Good Princess," he said, with the air of a traveller above suspicion.

His resolution was taken. Challenging all chances, he would respond to the invitation of the Princess. And so completely were doubt and hesitation dismissed with our adventurer, that it was not Mahommed who stepped from the boat where the populace was in densest assemblage, but Aboo-Obeidah, the Singing Sheik, and as such we will speak of him.

The guard at the gate, viewing him askance, detained him until he could be reported.

A fair conception of the scene presented when the Sheik stood on the floor of the portico is probably in the reader's mind; yet a glance at it may be pardoned. It was at first like a sudden introduction to an oriental garden. There were the vines, flowering shrubs, fruiting trees, many-fronded palms, and the effect of outdoors derived from the shadows of the pillars, and the sunshine streaming brilliantly through the open intervals. The tables bore proofs of the collation served upon them. Overhead was the soft creaminess of pure marble in protected state mellowed by friendly touches of time. At the end of the vista, the company was indistinctly visible through the verdure of obtruding branches. Voices came to him from that part, and gleams of bright garments; and to get to them it seemed he must pass through a viridescent atmosphere flecked with blooms, and faintly sweet with odors. For in losing the masculinity of their race the Greeks devoted themselves more and more to refined effeminacies.

Moving slowly forward under the guidance of Lysander, whose javelin beating the floor accentuated the rasping shuffle of his sandals, the Sheik came presently to a full view of the concourse.

He stopped, partly in obedience to a fine instinct of propriety teaching him he was now subject to the pleasure of his hostess, and partly to single out the royal enemy against whom he believed he was about to be pitted by destiny.

Constantine was sitting at ease, his left elbow resting on an arm of the sedilium, his forefinger supporting his cheek, his cloak across his lap. The attitude was reflective; the countenance exposed under the lifted visor of the helmet, was calm and benignant; except there was no suggestion of an evil revery holding the current of his thought, or casting a shade of uncertainty over his soul, he looked not unlike the famous Il Penseroso familiar to art-seekers in the Medici Chapel of Florence. Then the eyes of the rivals met. The Greek was in no wise moved. How it would have been with him could he have seen through the disguise of the Sheik may never be said. On the other part, the Sheik lifted his head, and seemed taking on increase of stature. A projecting fold of the head-kerchief overhung his face, permitting nothing to be seen but red-hued cheeks, a thin beard, and eyes black and glittering. The review he felt himself undergoing did not daunt him; it only sent his pride mounting, like a leap of flame. "By the Virgin!" said one of the courtiers to another, in a louder tone than the occasion demanded. "We may indeed congratulate ourselves upon having seen the king of camel drivers." There was a disposition to laugh amongst the lighter-minded of the guests, but the Princess checked it by rising. "Bid the Sheik approach," she said, to the old domestic; and, at a sign from her, the waiting-women drew closer about her chair. The figure of the Princess clad all in white, a bracelet of plain gold upon her left arm, fillets in her hair, one red, the other blue, a double strand of pearls about her neck--this figure, with the small head, perfect in turn, set matchlessly upon the sloping shoulders, the humid eyes full of violet light, the cheeks flushed with feeling--this figure so bright in its surroundings, admitted no rivalry in attention, none in admiration; the courtiers, old and young, turned from the Sheik, and the Sheik from the Emperor. In a word, every eye centred upon the Princess, every tongue bade hush lest what she said might be lost. Etiquette required the Sheik's presentation to the Emperor first, but seeing her about to comply with the rule, he prostrated himself at her feet. As he arose, she said: "When I invited you to come and give me more of the cheer there is in your art, O Sheik, I did not know my gracious kinsman, to whom every Greek is proud and happy to be allegiant, designed visiting me to-day. I pray you will not suffer too much from his presence, but regard him a royal auditor who delights in a tale well told, and in verses when the theme and measure go lovingly together. His Majesty, the Emperor!"

"Hist! Didst hear?" whispered the Professor of Philosophy to the Professor of Rhetoric. "Thyself couldst not have spoken better."

"Ay, truly," the other answered. "Save a trifle of stiffness, the speech might have served Longinus."

With her last word, the Princess stepped aside, leaving Mahommed and Constantine front to front.

Had the Sheik been observant of the monarch's dues, he would have promptly prostrated himself; but the moment for the salutation passed, and he remained standing, answering the look he received calmly as it was given. The reader and the writer know the reason governing him; the suite, however, were not so well informed, and they began to murmur. The Princess herself appeared embarrassed.

"Lord of Constantinople," the Sheik said, seeing speech was his, "were I a Greek, or a Roman, or an Ottoman, I should make haste to kiss the floor before you, happy of the privilege; for--be the concession well noted"--he glanced deferentially around him as he spoke--"the report which the world has of you is of a kind to make it your lover. After a few days--Allah willing--I shall stand before Amurath the Sultan. Though in reverencing him I yield not to any one simply his friend, he will waive prostration from me, knowing what Your Majesty may not. In my country we cleanse the ground with our beards before no one but God. Not that we are unwilling to conform to the rules of the courts in which we find ou............