to dispute the empire of the world with the Aerians, and, more than this, had already struck them a deadly blow which it was utterly beyond their power to return.
The effects of this discovery were exactly what Olga had anticipated. From the first time since their ancestors had conquered the earth and made war impossible, the supreme authority of the Aerians was called into question. It was quite beyond their power to conceal the fact that their flagship had either deserted or been captured, incredible as either alternative seemed. The Central Council therefore wisely accepted the situation, and immediately after the discovery of the bodies the President published a full account of her last voyage, as far as was known, in the columns of The European Review, the leading newspaper of the day in the Old World.
The only clue to the fate of the air-ship seemed to lie in the fact that at St. Petersburg a youth and young girl with whom Alan and Alexis had made friends on their journey from London had gone on board the Ithuriel for a trip to the clouds. But this led to nothing. Who was to recognise the daughter of the Tsar and the last male scion of the House of Romanoff in Olga and Serge Ivanitch, who had never been known as anything but the orphan grandchildren of Paul Ivanitch, the sculptor.
More than this, even to entertain for a moment the supposition that this boy and girl—for they were known to be little more—could by any possible means have overcome the ten Aerians, armed as they were with their terrible death-power, and then have vanished into space with the air-ship would have been to shatter the supremacy of the Aerians at a blow.
Even as it was, the wildest and most dangerous rumours began to fly from lip to lip and nation to nation all round the world, and for the first time since the days of the Terror the “Earth Folk” began to think of the Aerians rather as men like themselves than as the superior race which they had hitherto regarded them.
The President of Aeria at once issued a proclamation asking, in the interests of peace and public security, for the assistance of all the civilised peoples of the earth in his efforts to discover the lost air-ship, and also conditionally declaring a war of extermination on any Power or nation which either concealed the whereabouts of the Ithuriel or gave any assistance to those who might be in possession of her. This proclamation was published simultaneously in all the newspapers of the world, and produced a most profound sensation wherever it was read.
The terrible magic of the ominous word “war” roused at once the deathless spirit of combativeness that had lain dormant for all these years. It was impossible not to recognise the fact that this mysterious power, which had come unseen into existence and had snatched the finest vessel in the Aerian navy from the possession of the Council with such daring and skill that not a trace of her was to be found, could have but one object in view, and that was to dispute the Empire of the Air with the descendants of the Terrorists.
This could mean nothing else than the outbreak, sooner or later, of a strife that would be a veritable battle of the gods, a struggle which would shake the world and convulse human society throughout its whole extent. The general sense of peace and security in which men had lived for four generations was shattered at a stroke by the universal apprehension of the blow that all men felt to be inevitable, but which would be struck no man knew when or how.
A year passed, and nothing happened. The world went on its way in peace, the Aerian patrols circled the earth with a moving girdle of aerial cruisers, ready to give instantaneous warning of the first reappearance of the lost Ithuriel; but nothing was discovered. If she still existed, she was so skilfully concealed as to be practically beyond the reach of human search.
Then without the slightest warning, while Anglo-Saxondom was in the midst of the hundred and thirtieth celebration of the Festival of Deliverance, the civilised world was started out of the sense of security into which it had once more begun to fall by the publication, in The European Review, of the following piece of intelligence:—
A MYSTERY OF THE SEA.
Disappearance of Three Transports.
It is our duty to chronicle the astounding and disquieting fact that the three transports, Massilia, Ceres, and Astræa, belonging respectively to the Eastern, Southern, and Western Services, have disappeared.
The first left New York for Southampton four days ago, and should have arrived yesterday. The Central Atlantic signalling station reported her “All well” at midday on Tuesday, and this is the last news that has been heard of her. The second was reported from Cape Verd Station on her voyage from Cape Town to Marseilles, and there all trace of her is lost, as she never reached the Canary Station. The third was last heard of from Station No. 2 in the Indian Ocean, which is situated at the intersection of the 80th meridian of east longitude with the 20th parallel of south latitude; she was on her way from Melbourne to Alexandria, and should have touched at Aden two days ago.
The disappearance of these three magnificent vessels, filled as they were with passengers and loaded with cargoes of enormous value both in money and material, can only be described as a calamity of world-wide importance. Unhappily, too, the mystery which surrounds their fate invests it with a sinister aspect which it is impossible to ignore.
That their loss is the result of accident or shipwreck it is almost impossible to believe. They represented the latest triumphs of modern shipbuilding. All were over forty thousand tons in measurement, and had engines capable of driving them at a speed of fifty nautical miles an hour through the water.
For fifty years no ocean transport has suffered shipwreck or even serious injury, so completely has modern engineering skill triumphed over the now conquered elements. Added to this, no storms of even ordinary violence have occurred along their routes. After passing the stations at which they were last reported, they vanished, and that is all that is known about them.
The President of Aeria has desired us to state that he has ordered his submarine squadrons stationed at Zanzibar, Ascension, and Fayal, to explore the ocean beds along the routes pursued by the transports. Until we receive news of the result of their investigation it will be well to refrain from further comment on this mysterious misfortune which has suddenly and unexpectedly fallen upon the world, and in doing so we shall only express the fervent desire of all civilised men and women when we express the hope that this calamity, grievous as it is, may not be the precursor of even greater misfortunes to come.
It would be almost impossible for us of the present day to form any adequate estimate of the thrill of horror and consternation which this brief and temperately-worded narration of the mysterious loss of the three transports sent through the world of the twenty-first century. Not only was it the first event of the kind that had occurred within the memory of living men, but, saving the loss of the Ithuriel, it was the first dark cloud that had appeared in the clear heaven of peace and prosperity for more than a hundred and twenty years.
But terrible as was the state of excitement and anxiety into which it threw the nations of the world, it gave place to a still deeper horror and bewilderment when day after day passed and no tidings were received of the three submarine squadrons, consisting of three vessels each, which had been sent to inquire into the fate of the transports. They dived beneath the waves of the Indian Ocean and the Atlantic, and that was the last that was ever seen of them.
Month after month went by, every week bringing news of some fresh calamity at sea—of the disappearance of transport after transport along the great routes of ocean travel, of squadron after squadron of submarine cruisers which plunged into the abysses of the sea to discover and attack the mysterious enemy of mankind that lay hidden in the depths, and which never reappeared on the surface. Whether they were captured or destroyed it was impossible to say, simply because no member of their crews ever returned to tell the tale.
Whatever doubt there had been as to the existence or hostile nature of this ocean terror that was paralysing the trade of the world was speedily set at rest by a discovery made in the spring of the year 2032 by a party of divers who descended to repair a fault in one of the Atlantic cables about two hundred miles west of Ireland.
There, lying in the Atlantic ooze, they found the shattered fragments of the Sirius, a transport which had disappeared about a month before. The great hull of the splendid vessel had