As to what he intends to do with his machine, I fear, recalling his letter, that the world must expect from it more of evil than of good. At any rate, the incognito which he has so carefully guarded in the past he must mean to preserve in the future. Now only one man can establish the identity of the Master of the World with Robur the Conqueror. This man is I his prisoner, I who have the right to arrest him, I, who ought to put my hand on his shoulder, saying, "In the Name of the Law --"

On the other hand, could I hope for a rescue from with out? Evidently not. The police authorities must know everything that had happened at Black Rock Creek. Mr. Ward, advised of all the incidents, would have reasoned on the matter as follows: when the "Terror" quitted the creek dragging me at the end of her hawser, I had either been drowned or, since my body had not been recovered, I had been taken on board the "Terror," and was in the hands of its commander.

In the first case, there was nothing more to do than to write "deceased" after the name of John Strock, chief inspector of the federal police in Washington.

In the second case, could my confreres hope ever to see me again? The two destroyers which had pursued the "Terror" into the Niagara River had stopped, perforce, when the current threatened to drag them over the falls. At that moment, night was closing in, and what could be thought on board the destroyers but that the "Terror" had been engulfed in the abyss of the cataract? It was scarce possible that our machine had been seen when, amid the shades of night, it rose above the Horseshoe Falls, or when it winged its way high above the mountains on its route to the Great Eyrie.

With regard to my own fate, should I resolve to question Robur? Would he consent even to appear to hear me? Was he not content with having hurled at me his name? Would not that name seem to him to answer everything?

That day wore away without bringing the least change to the situation. Robur and his men continued actively at work upon the machine, which apparently needed considerable repair. I concluded that they meant to start forth again very shortly, and to take me with them. It would, however, have been quite possible to leave me at the bottom of the Eyrie. There would have been no way by which I could have escaped, and there were provisions at hand sufficient to keep me alive for many days.

What I studied particularly during this period was the mental state of Robur. He seemed to me under the dominance of a continuous excitement. What was it that his ever-seething brain now meditated? What projects was he forming for the future? Toward what region would he now turn? Would he put in execution the menaces expressed in his letter--the menaces of a madman!

The night of that first day, I slept on a couch of dry grass in one of the grottoes of the Great Eyrie. Food was set for me in this grotto each succeeding day. On the second and third of August, the three men continued at their work scarcely once, however, exchanging any words, even in the midst of their labors. When the engines were all repaired to Robur's satisfaction, the men began putting stores aboard their craft, as if expecting a long absence. Perhaps the "Terror" was about to traverse immense distances; perhaps even, the captain intended to regain his Island X, in the midst of the Pacific.

Sometimes I saw him wander about the Eyrie buried in thought, or he would stop and raise his arm toward heaven as if in defiance of that God with Whom he assumed to divide the empire of the world. Was not his overweening pride leading him toward insanity? An insanity which his two companions, hardly less excited than he, could do nothing to subdue! Had he not come to regard himself as mightier than the elements which he had so audaciously defied even when he possessed only an airship, the "Albatross?" And now, how much more powerful had he become, when earth, air and water combined to offer him an infinite field where none might follow him!

Hence I had much to fear from the future, even the most dread catastrophes.