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 identity 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 shore 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.