In succession, these questions flitted through the mind of the lad as he further inspected his new find. Leaving it, he paced off first in one direction and then in another, keeping this up until he had run a radius in every direction from the periscope pole. But nowhere was there any trace of a ship's hull within a reasonable distance of that stranded ship's eye. Jay was all excited. To think! He had located the lost submarine in such an extraordinary manner! "I'll have to get out of here, though, and mighty quick," was his next thought as he began to feel that queer pain across the eyes and at the base of the brain that tells a diver he has had enough for one time of the deadly sea pressure. In his excitement he gave his signal line a mighty jerk. Afterwards they told him he had signaled the emergency. And they had been awaiting the signal so long, thinking some mishap had come to Jay, that they yanked him up in jig time. Jay was a sight when he came over the side of the _Nemo_ again. For one thing he had stayed too long. His nose was bleeding profusely and his head was bruised and battered by the pummeling he had gotten down below in the embrace of that undertow. But when they got his helmet off and freshened him up with cold water and first aid restoratives he soon rallied again to his normal self. And then he told them all about the U-boat in its sepulcher of sand with its periscope standing out like a gravestone. "Guess you were right," admitted Commander Wilberforce as he turned to Captain Austin, recalling how the latter had suggested the previous night that the U-boat might have been covered over by drifted sand, set in motion by cross currents and undertows. "And that being the case, I don't see that there is much that we can do here for the present," added the Bridgeford official. "It will be necessary for us to bring down our new salvage ship before we can do anything with that U-boat. Of course, we have facilities for digging into the bottom of the ocean just as land engineers employ the steam shovel to excavate a cut or a tunnel. What do you think?" Commander Wilberforce heartily agreed and said he would go ashore at once to acquaint the department at Washington with the full facts and ask an authorization on behalf of the Bridgeford Company for the employment of their entire resources in exhuming the buried submarine. In the meanwhile the _Nemo_ was to return to Bridgeford. But if Commander Wilberforce and Captain Austin were through for the present, Diver Jay Thacker was not. He liked not at all the prospect of backing off at this stage of the game, leaving the U-boat possibly to be buried high over her periscope deeper and deeper until the new _Jules Verne_ could get on the job from Bridgeford.