But Frank Reade, Jr., did not like the idea of being tossed about so violently. “Open the air-chamber, Barney!” he cried. “We’ve had enough of this!” “All roight, sor!” cried the Celt. He proceeded to obey with alacrity. The Explorer instantly sank. The water was not more than fifty fathoms deep here, but as the submarine boat touched the bottom not a particle of the rude storm going on above could be felt. The search-light was turned on, and a startling sight was revealed. All about was smooth, white sand, and deeply buried in this, not one hundred feet distant, was the dismantled hull of a vessel. “‘Clar to goodness!” cried Pomp. “Does yo’ see dat, Marse Frank?” “Ah, there are many such monuments as that in these waters!” said Frank. “These are the fishing banks, and just such storms as the one going on above have sent many a craft to the bottom!” “Begorra, that don’t luk much loike a fishing vessel, sor!” said Barney. Touching a lever, Frank caused the Explorer to glide forward a little ways. The search-light was full upon the wreck, and every detail of the craft could be plainly followed. Frank saw that Barney was right. The craft was far from being like that of the fishermen. Its queer shaped hull and high decks fore and aft showed it to be of the Spanish galleon type. There was no doubt but that this was an old-time ship which had lain here perhaps for a century. Frank was at once interested. “Well, here is a find!” he cried; “for aught we know this may be one of the treasure ships!” “Massy sakes! Jes’ let dis chile git on him armor!” cried Pomp. “I done fink dat I laik fo’ to visit dat ship!” “Begorra, I’ll sthay an’ watch out fer sharks if yez want to go,” said Barney to Frank. The young inventor very quickly made up his mind. “Upon my word I’ll do it!” he cried. “Get ready, Pomp. Perhaps we’ll make a find.” The darky was delighted with the prospect. He was quickly ready. Going into the vestibule both put on their diving suits. Then Frank turned a cock and the compartment began to fill up with water. The storage reservoirs on their backs began to work, keeping up a current of wholesome oxygen. Frank opened the door and stepped out upon the platform. It required a few moments for them to get used to the tremendous pressure of the water. Then Frank began to descend the gang ladder. Pomp followed him. Soon they reached the bed of the ocean and stood upon the white sands. Barney in the pilot-house watched them. Frank started for the wreck and Pomp followed behind. Both had axes in their belts and long knives. These latter were for use in case they were attacked by a shark or any sea monster of that ilk. Frank saw that the hull of the vessel was literally covered with seaweed and debris. However, he was able with the aid of the electric light upon his helmet to read the name upon the stern: “Donna Isabella.” “It is a Spanish ship!” thought Frank. “She will be worth exploring.”