All that went on before the cafe was interesting enough. It was not, however, until near the end of the meal that anything happened of personal interest to Dave and Dan.

Then there was a quick step behind them, next a voice cried gaily:

"My dear Monsieur Darrin, who could have expected to see you here?"

"Any one who knew that my ship is in the harbor might have expected to see me here," replied Dave, rising and smiling. "How do you do, Monsieur le Comte?"

It was indeed the Count of Surigny, and that dapper, well-set-up young Frenchman was nattily dressed, smiling, and with an unmistakable air of prosperity about him.

Dan had also risen. Then as the three seated themselves Dave inquired what refreshment his friend of Monte Carlo would allow them the pleasure of ordering for him. The Count asked only for a cup of coffee, after which the chat went merrily on.

"My dear Darrin, I rejoice to be able to tell you that I have determined never again to visit Monte Carlo," said the Count.

"Moreover, I am prosperous and happy. Ah, what a debt of grat.i.tude I owe you! I know you must be wondering why I am not serving my country in the trenches."

"I knew you must have some good reason for not serving in the French army at such a time," Dave replied.

"I tried to enter the army," Surigny replied, "but the surgeons refused to pa.s.s me. One of my eyes is too weak, and there is, besides, some little irregularity in the action of my heart that would make it impossible for me to endure the hardships of a soldier. So, despite my protests and entreaties, the surgeons have refused to accept me for military service."

"Is it permitted to ask if you have found employment?" Dave inquired.

"I have found employment of a sort," the Count rattled on, without a shade of embarra.s.sment. "It might be questioned if I am worth the remuneration which I receive, but at least I am happy. I am permitted to serve a friend in some little matters of a personal nature."

That answer was enough to prevent Dave from making any further inquiries as to the Count's new means of a livelihood.

"It gives me the greatest happiness to be able to see you again, and to hear your voice," continued the Count. "I am here in Naples only as a matter of accident, and it may be that my stay here will be short. I was at a table in the rear with a friend when I espied you sitting here. Is it permitted that I bring my friend over and present him?"

"We shall be delighted to meet any friend of yours, Surigny," Dave replied pleasantly.

"Then I shall bring him here at once," replied the Frenchman, lightly, rising and moving rapidly away.

"I wonder what line of work the Count can be in now," mused Dalzell, aloud. "It would appear to be something that pays him very well and allows him to travel. I wonder if the friend he is to introduce to us is the one that employs him."

"We shall know that if Count Surigny chooses to inform us," smiled Dave.

Then their talk ceased, for they heard the Count's voice in conversation with some one as he came up behind them.

"My dear Monsieur Darrin," cried the Count, "I am honored in being able to present to you Monsieur Dalny."

Ensign Darrin rose, wheeled and thrust out his hand. Then his eyes turned to the newcomer's face.

Nor could the young naval officer repress a slight start, for M. Dalny was unmistakably one of the two men whom he had overheard on the veranda of the Casino at Monte Carlo.

"Monsieur Darrin," replied M. Dalny, accepting Dave's hand, "I feel that I am indeed honored in being able to meet one who, I understand, has been such a friend to my friend the Count of Surigny. I shall hope to see much of you."

Dalny was then introduced to Dalzell, after which, at Dave's invitation, the newcomers seated themselves. Fresh coffee was ordered.

But Dave Darrin's head was now in a good deal of a whirl.

As to the ident.i.ty of M. Dalny, there could be no mistake whatever.

And here was the Count of Surigny, evidently in the friendship of this plotter against the American Navy. It was not unlikely that the Count, too, was in the employ of this enemy of the United States.

"What can this whole thing mean, and does Surigny _know_ that he is working against the peace and honor of my country?" Dave asked himself, his pulses throbbing.

"Are you to be here long at Naples, Monsieur Darrin?" Dalny soon asked in his most velvet-like tones.

"I really haven't the least idea, Monsieur Dalny," Dave replied truthfully, forcing a smile. "I am not deep in the confidence of Admiral Timworth."

"I thought it very likely," purred Monsieur Dalny, "that you might have heard from your officers as to how many days of sh.o.r.e liberty are likely to be granted your sailors."

"Oh, probably we shall--" began Dan, who found the French conversation easy to understand in this instance.

But the slightest of signs from Darrin was sufficient to check Dalzell's intended statement. So Danny Grin merely finished:

"Probably we shall hear soon how long our stay here is to be."

"Are you interested, Monsieur Dalny, in the length of our stay here?"

queried Ensign Dave, gazing carelessly into the eyes of the stranger.

"Oh, it is but a matter of idle curiosity to me," replied the other, shrugging his shoulders amiably. "Just as you understand it would be a matter of a little curiosity, my dear Monsieur Darrin, to know whether the American fleet now in the harbor here will keep together for the next few weeks, and what ports you will visit. But I imagine that you have, as yet, no information on such points."

Dave did not reply to M. Dalny's remarks, who, however, did not appear to notice the omission. Drawing forth a long cigar and lighting it, Dalny puffed away, seeming to prefer, after that, to listen to the conversation of the others.

"Who can this Monsieur Dalny be?" Dave asked himself, racking his brain. "And of what nationality? The word 'Monsieur' is French in itself, though Dalny is hardly a French name. Perhaps it makes little difference, though, for men who sell their time and services as I am afraid this Dalny fellow is doing, are quite likely to masquerade under a.s.sumed names."

Presently M. Dalny excused himself for a few moments. Sauntering toward the rear of the restaurant, he stepped into a side pa.s.sage, then made a quick entrance into a private room, the door of which he instantly locked. He now crossed the room and stood before the solitary diner in that room.

"My dear Mender!" cried Dalny.

"Your face betrays interest, Dalny," remarked the other, who was the older of the pair whom Dave had heard on the Casino veranda.

"And I am interested," continued Dalny, in a low tone. "I have met the two young officers from the American flagship."

"That is what you are here to do," smiled Monsieur Mender.

"The fellow Darrin refuses me any information about the movements of the American fleet."

"That was perhaps to be expected," answered Mender reflectively.

"But I fear matters are worse than that," Dalny went on hurriedly.

"Explain yourself, Dalny."

"Darrin did not see my face until he rose to greet me, when Surigny introduced us," continued Dalny. "Then he started, slightly, yet most plainly. Monsieur Mender, that young American naval officer knows something about us."

"Not very likely, Dalny."

"Then he at least suspects something."

"Why should he?"