"Thou hast always succeeded," answered Constantine; "no promise made by thee hath failed. Thou hast never once disappointed thine emperor and friend."

"For the present," said Eusebius, "I do greatly desire of thee an indefinite leave of absence, but I trust not a protracted one, in order that I may pay a visit to my beloved brother Eusebius, the Bishop of Nicomedia."

For an instant the face of Constantine was clouded. "Within the dominions of Licinius?" he softly murmured, but in a moment he answered: "Thou hast leave to go! But tell me, bishop, why thou goest unto Nicomedia. What canst thou do there except to expose thy dear and valuable head to the fury of the emperor?"

"I go thither," said Eusebius, with a light and musical laugh, "seeking to prepare a problem over which the historians and warriors of all future ages shall puzzle their weary brains in vain. The question which will be, I trust, a riddle unto them, is briefly this: Why was it that, in the second war with the most Christian Emperor Constantine, the brave and competent commander Licinius, possessing so vast a superiority at sea, utterly failed to carry an offensive war into the very center of his rival's dominions, and, having moored his fleet safely in some secure strait or bay, left the issue of the war to be decided by the land-forces alone, in the conduct of which the most glorious Emperor Constantine was known to be invincible?"

Then Constantine sprang from his seat, and with eager, glowing face he embraced the bishop and kissed him, saying: "Canst thou, indeed, do this thing for me? If thou canst, thou art stronger than ten legions, and deservest a reward equal to their pay!"

"Thou knowest well," said Eusebius, kindly but with inexpressible dignity, "that I have served thee faithfully without reward, because I love thee, Augustus, and love the Church of Christ, and know assuredly that thine own triumph will secure the triumph of the faith!"

"Thou speakest nothing but the truth, bishop," replied Constantine, his fine face lighting up with strong emotions, "and I have loved and honored thee in my heart accordingly. Thou knowest that, whenever thou needest me, I am all thine own. But how can this miracle that shall neutralize the emperor's maritime ascendency be wrought?"

"I think," answered Eusebius, gravely and sadly, "that miracles have recently ceased throughout the world, so that even the Church of Christ hath to depend upon only human agencies, which thou knowest was not formerly the case. It is well known, however, that the old Emperor Licinius doth not doubt the truth and divinity of our holy religion, although he hateth the Christians because he hath been persuaded that they offer up more prayers for thee than for himself. Now, it hath seemed probable to me that if an authentic Christian prophecy could be privately circulated through the imperial palace of Nicomedia to the purport that the Eastern Empire would be overthrown whenever it might send a hostile fleet to ravage the coasts of Europe, his fear and hatred of the Christians would influence him to retain his fleet at home in order to forestall the prophecy. Of course, the common sense of the matter would be, as thou hast said, for him to use his vast naval strength to desolate thy coasts in Greece, Italy, Africa, Hispania, and Gaul; but, perhaps, he may not do so. The matter is not very clearly wrought out in my mind, but gradually takes shape as I consider it, and I desire to see my brother, Eusebius of Nicomedia, a wise and prudent man, to converse with him concerning it."

"Thou art a great and wonderful bishop," said Constantine. "Go thou, and may God prosper thee! Keep me well informed of thy movements, and of all events that happen. Thou shalt have orders for all supplies, attendance, and money, which thou canst possibly need for thy purposes. If thou fall into any trouble at Nicomedia, or elsewhere, have sure means of informing me, for I would risk the sovereignty of the world to deliver thee, thou incomparable friend and bishop. When wilt thou depart?"

"Within a few days, at most," said Eusebius. "And thou shalt do nothing except to grant me leave of absence. We bishops can further each other upon our journeys quite well, and I wish to go secretly and without attracting notice."