EXPLANATIONS.

"By the by," observed Captain Restronguet, as he entered the cabin, "I have already sent a reassuring message concerning you to the British Admiralty."

"You have! How?" asked Hythe in astonishment. "You are not fitted with wireless?"

"And why not? As a matter of fact we are; with one of the latest type of Raldorf-Holperfeld instruments, which, as you know, do not require out-board aerials. The message is received by an automatic recorder."

"And, might I ask, with whom do you communicate?"

"That need not be kept a secret from you, Mr. Hythe."

"Why not, sir?"

"Because I wish to detain you on board the 'Aphrodite' until I have no further use for secret correspondents. My wish is law, Mr. Hythe, and please to remember that. At the same time I wish to make your period of enforced detention pass as pleasantly as possible, and you will have complete facilities, up to a certain point, of gaining valuable information that will in time to come amply recompense you for any slight inconvenience that might arise."

"But my career? Remember, sir, I'm a naval officer."

"Of course. That is one reason why I think fit to keep you. Had you been an ordinary or even an able seaman, I should have taken the first opportunity of putting you ashore, with hardly any chance of your seeing anything on board the vessel that might be put to my disadvantage. As soon as I learned that you were a naval sub-lieutenant I made up my mind to retain you as my guest for awhile."