"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?"

"Monsieur Mender," hurried on Dalny, "you recall that evening on the Casino veranda at Monte Carlo? You and I, as we approached a little grove of potted trees, talked rather more incautiously than we should have done."