De Beauxchamps's plan was immediately adopted. The _Jules Verne_ descended, and pushed with all her force, while the engines of the Ark were reversed, and within fifteen minutes they were once more afloat. Without waiting for a suggestion from Cosmo Versál, the Frenchman carefully inspected with his searchlight the bottom of the Ark where she had struck, and when he came to the surface he was able to report that no serious damage had resulted. "There's no hole," he said, "only a slight denting of one of the plates, which will not amount to anything." Cosmo, however, was not content until he had made a careful inspection by opening some of the manholes in the inner skin of the vessel. He found no cause for anxiety, and in an hour the Ark resumed its voyage eastward, passing over the site of ancient Syracuse. By this time a change of the wind had sent the smoke from Etna in their direction, and now it lay thick upon the water, and rendered it, for a while, impossible to see twenty fathoms from the bridge. "It's old Etna's dying salute," said Cosmo. "He won't have his head above water much longer." "But the flood is going down," exclaimed Captain Arms. "Yes, and that puzzles me. There must have been an enormous absorption of water into the interior, far greater than I ever imagined possible. But wait until the nucleus of the nebula strikes us! In the meantime, this lowering of the water renders it necessary for us to make haste, or we may not get over the mountains round Suez before the downpour recommences." As soon as they escaped from the smoke of Etna they ran full speed ahead again, and, keeping well south of Crete, at length, one morning they found themselves in the latitude and longitude of Alexandria. The weather was still superb, and Cosmo was very desirous of getting a line on the present height of the water. He thought that he could make a fair estimate of this from the known elevation of the mountains about Sinai. Accordingly they steered in that direction, and on the way passed directly over the site of Cairo. Then the thought of the pyramids came to them all, and De Beauxchamps, who had come aboard the Ark, and who was always moved by sentimental considerations, proposed that they should spend a few hours here, while he descended to inspect the condition in which the flood had left those mighty monuments. Cosmo not only consented to this, but he even offered to be a member of the party. The Frenchman was only too glad to have his company. Cosmo Versál descended into the submersible after instructing Captain Arms to hover in the neighborhood. The passengers and crew of the Ark, with expressions of anxiety that would have pleased their subject if he had heard them, watched the _Jules Verne_ disappear into the depths beneath. The submersible was gone so long that the anxiety of those aboard the Ark deepened into alarm, and finally became almost panic. They had never before known how much they depended upon Cosmo Versál.