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 been torn asunder by some explosive of tremendous power, and, more than this, her hold had been rifled of all its treasure and the most valuable portions of its cargo. After this there no longer remained any doubt that the depths of the ocean were the hunting-ground of some foe of society, one at least of whose objects was plunder.