"But, Mr. McCrea," urged the "Luzon's" executive officer, "the time, '11.33 P.M.,' has been lettered on the ship's side with great distinctness."

Still, that lieutenant was positive that the outrage hadn't been perpetrated during his deck watch. He had kept much too vigilant a watch for that.

While the questioning of the watch officers was going on the "Luzon's" captain appeared. He quizzed Mr. McCrea unmercifully, and that officer of the early night watch began to look and feel most uncomfortable.

"There's but one thing to be done, first of all," stated the "Luzon's" commander, Captain Bigelow. "Send a boat over to the 'Pollard' to ask the people there if they have any explanation to offer."

When the "Luzon's" launch came alongside, Mr. Farnum, expecting the visit, assured the ensign in charge that he would go to the battle ship at once to explain matters. Mr. Farnum did go. Captain Bigelow listened with an intensely grave face. Lieutenant McCrea seemed to be in the depths of mortification, and his face was very red.

"There is but one thing to be done, now, Mr. Farnum," declared Captain Bigelow, severely. "We shall have to appear before Admiral Bentley, on his flagship, as soon as he will receive us. You must repeat your explanation to him."

This Mr. Farnum was quite willing to do. Before the boatbuilder finished with his explanation to the fleet's commander there was a very decided twinkle in Admiral Bentley's sharp old eyes.

"I accept your explanation, Mr. Farnum, that it was all a joke," smiled the admiral.

"Of course," Jacob Farnum made haste to add, "having perpetrated such a hoax, I shall charge myself with all the expense of painting out the objectionable lettering."

"But I am not sure that that will be necessary," Admiral Bentley laughed. "The truth is, Mr. Farnum, your hoax on Mr. McCrea has taught us a most excellent and valuable lesson about the sort of other work that a submarine might do against a battleship at anchor. The lesson is worth far more than the cost of the paint. Indeed, I shall not have the lettering on the 'Luzon's' side painted out until other officers of the fleet have been able to examine such a striking proof of the value of submarines. Yet I am extremely sorry for the feelings of Mr. McCrea this morning."