Amidships, above the control cabin, was a low revolving turret, or conning-tower, containing a second instrument board, so that the machine could be driven either from there or from below. It carried not only periscopes and other instruments, but a two-inch automatic cannon, of a recent design, capable of firing gas, shrapnel, or high-explosive shells at the rate of two hundred and twenty per minute. There was a small torpedo tube forward; and, as a further addition to the armament, Sam had installed transformer and projectors for using the half-million horse-power of the generators to produce a vast electric arc. Arrangements for the life and comfort of the passengers were not lacking. There were oxygen tanks and caustic potash containers to purify the air. The walls were provided with heat insulation, and the temperature was automatically controlled by electricity. The control room below the conning-tower, with the instruments at one end, was fitted up like a luxurious little library. Forward was the tiny galley and dining room, aft, a miniature stateroom. The remarkably compact generators and machinery were in a compartment in the stern. There was a space in the bow for supplies of concentrated food, spare parts for the machinery, arms and ammunitions, and miscellaneous supplies. So fast did the building proceed that, within three months after the day of darkness, the last plane of the construction fleet was gone. We began to supply the vessel at once. Sam selected the foodstuff, and had enough put on board to last us for many years. We had a supply of ammunition for the machine gun, and an assortment of rifles and pistols. Sam had a little corner fitted up for a laboratory, and stocked with instruments and apparatus of all varieties. In the cabin I put the better part of my collection of the old romances. We were preparing a little world of our own, getting ready to be cut off from civilization, forever! Last of all, Sam set up on board of our craft the great machine with which he had battled the strange force in the ether to bring back the sun. He had not given up. I knew that, even if he saw no hope, he would not surrender so long as he lived. He would carry on the war to the end. As it stood on the beach below the cottage, the Omnimobile was a strange-looking machine. Gleaming like silver in the bright sunshine of those last days, it looked like a vast metal monster. It was bulky, almost clumsy looking; but it had somehow the air of an irresistible strength that could force a way through forests and surmount mountain peaks. In its resistless power, it suggested the old saurian lords of the jungle. With its low, thick body, and the massive strength of its construction, there seemed little doubt that it might go almost anywhere it chose, and be able to take care of itself upon arrival.