As Hardress left the room the president said to his nephew: "Austin, you can go and wire to our people here and over in England that the experiment begins to-night. Ask them to let us have all the news they can send, and especially to let us know whether any electric disturbances take place in our territories; and you might ask Doctor Lamson to come over for a few minutes." From this conversation it will be seen that the momentous voyage of the _Nadine_ had ended without any further mishap. Davis Straits and the Northern waters had been singularly clear of ice, and she had been able to steer the whole way to Port Adelaide without difficulty. Doctor Lamson had received them in the midst of his marvellous creation as quietly as though he had been receiving them in his own house at Hampstead. They had all admired and wondered at the sombre magnificence of what was certainly the most extraordinary structure on the face of the globe. But those who are permitted to see them have marvelled still more at the huge engines and the maze of intricately complicated apparatus which the magic of money and science had called into being in the midst of this desolate wilderness. So far, the involuntary guests of the Trust had not been permitted to see anything more than the outsides of the engine-rooms and the apartments which they occupied. They had been politely but unmistakably given to understand that, after what had happened, it would be necessary to consider them as prisoners. They would be treated with every consideration--in fact, as guests. But at the same time, they would be closely watched, and any attempt to communicate with any officer or workman employed on the Works would be immediately punished by close confinement for all of them. For their part, they had accepted the strange situation with perfect philosophy, and awaited the coming of the expeditions with a great deal more confidence than they would have felt had they known the terrible nature of the defences with which Doctor Lamson had armed this fortress in the wilderness. Within an hour after the president had pronounced the fiat which was to alter the history of the world, everything was in readiness for the making of the Great Experiment, and, for the first time since their arrival in Boothia, Count Valdemar, Sophie, and the marquise were admitted into the great engine-rooms which stood in the middle of each side of the quadrangle. They stared in frank astonishment at the colossal machinery, and the count said to the president as they entered No. 1, or the Northern engine-room: "Our aims may not be the same, but I am compelled to confess that you have wrought a most astounding miracle in the midst of the ghastly desert."