On the broad breast he saw a representation of a world overwhelmed with a deluge and encircling it was what he instantly concluded to be the picture of a nebula. Underneath, in ancient Egyptian hieroglyphics, with which Cosmo was familiar, was an inscription in letters of gold, which could only be translated thus: I Come Again-- At the End of Time. "Great Heavens!" he said to himself. "It is a prophecy of the Second Deluge!" [Illustration: "IT IS A PROPHECY OF THE SECOND DELUGE."] He continued to gaze, amazed, at the figure and the inscription, until De Beauxchamps clambered to his side and indicated to him that it was necessary that they should ascend without further delay, showing him by signs that the air-renewing apparatus would give out. With a last lingering look at the figure, Cosmo imitated the others by detaching the weights from below his feet, and a minute later they were all shooting rapidly toward the surface of the sea, De Beauxchamps, as he afterwards declared, uttering a prayer for the repose of the _Jules Verne_. The imaginary time which Amos Blank had fixed as the limit set by Cosmo for the return from the depths was nearly gone, and he was beginning to cast about for some other invention to quiet the rising fears of the passengers, when a form became visible which made the eyes of Captain Arms, the first to catch sight of it, start from their sockets. He rubbed them, and looked again--but there it was! A huge head, human in outline, with bulging, glassy eyes, popped suddenly out of the depths, followed by the upper part of a gigantic form which was no less suggestive of a monstrous man, and which immediately began to wave its arms! Before the captain could collect his senses another shot to the surface, and then another and another, until there were seven of them floating and awkwardly gesticulating within a radius of a hundred fathoms on the starboard side of the vessel. The whole series of apparitions did not occupy more than a quarter of a minute in making their appearance. By the time the last had sprung into sight Captain Arms had recovered his wits, and he shouted an order to lower a boat, at the same time running down from the bridge to superintend the operation. Many of the crew and passengers had in the meantime seen the strange objects, and they were thrown into a state of uncontrollable excitement. "It's them!" shouted the captain over his shoulder, in response to a hundred inquiries all put at once, and forgetting his grammar in the excitement. "They've come up in diving-suits." Amos Blank comprehended the situation at once; and while the captain was getting out the boat, he explained matters to the crowd.