"I am sure that you do, sir; and when I saw you on the quarter-deck for the first time, I had no doubt you were the officer who came on board sick last evening," replied Captain Battleton.

"That makes it all the more remarkable, for I was not aware that there was any officer in the navy who resembled me so closely," added Christy more bewildered than before, and beginning to scent a plot of some kind against him or his country.

"I must say that any man who will take upon himself the position and reputation of the real Lieutenant Passford is a bold man, and even, if he succeeds in taking his place, he will fail in playing the rôle."

"I should thank you, Captain Battleton, for the compliment, if I were not under suspicion of being some other person. May I ask when it will be convenient for you to settle the question, for it is not pleasant for me to feel that I am looked upon as even a possible impostor?"

"I shall not regard you as an impostor, Mr. Passford, for I mean to be entirely impartial, and I shall not brand you even in thought until the evidence warrants me in doing so," replied the commander, as he called the surgeon who was just coming on deck. "How do you find your patient, Dr. Connelly?"

"I find him—I thought I found him; but he appears to be on deck," replied the surgeon, as he fixed his gaze upon Christy, preluded by a start, dramatic enough to prove that he was astonished to find his patient was not in his room below. "I left him not five minutes ago, for I have not yet been able to discover what ails him. He complained of a severe headache and pains in his bones; but he has not a particle of fever, or any symptom of anything that I can discover. I am glad to see you on deck, Mr. Passford. How is your headache?"

"If I have had any headache, I have entirely recovered from it," replied Christy, laughing heartily. "I came on board only an hour ago, doctor, and I have had no headache, thank you."

"Looking at you more closely, I see that you are not my patient, and you will excuse me for giving you a headache. But you resemble my patient very closely," added the doctor.

"I did not answer your question, Mr. Passford," interposed Captain Battleton. "In an hour we will settle the question."

Christy seated himself and began to consider the strange situation.