This was a question to which Browne had not yet given any proper consideration, though he had practically decided on one person. The voyage from England to Japan, as all the world knows, is a long one, and he felt that if he went alone he would stand a very fair chance of boring himself to death with his own company.

"I am not able to say yet who will accompany me; but in any case you had better be prepared for one or two. It is more than possible, however, that we shall pick up a few others in Japan."

"Very good, sir," said Mason. "I will see that all the necessary arrangements are made. Now I suppose I had better see about getting back to Southampton."

Having consulted his watch, he rose from his chair, and was about to bid his employer good-bye, when Brown stopped him.

"One moment more, Mason," he said. "Before you go I have something to say to you, that is of the utmost importance to both of us." He paused for a moment, and from the gravity of his face the captain argued that something more serious was about to follow. "I wanted to ask you whether you had any sort of acquaintance with the seas to the northward of Japan, say in the vicinity of the island of Yesso and the Gulf of Tartary?"

"I cannot say that I have any at all, sir," the other replied. "But I could easily make inquiries from men who have sailed in them, and procure some charts from Potter, if you consider it necessary."

"I should do so if I were you," said Browne; "it is always as well to be prepared. In the meantime, Mason, I want you to keep what I have said to yourself. I have the most imperative reasons for making this request to you. A little mistake in this direction may do me an incalculable amount of harm."

Though he did not in the least understand what prompted the request, the captain willingly gave his promise. It was easy for Browne, however, to see that it had caused him considerable bewilderment.

"And there is one other point," Browne continued. "I want you to be more than ordinarily careful that the crew you take with you are the best men procurable. I am not going to say any more to you, but leave you to draw your own conclusions, and to bear in mind that this voyage is likely to be one of the most, if not the most, important I have ever undertaken. You have been with me a good many years now, and you were with my father before me—it is not necessary for me to say not only as captain, but also as a man who is an old and well-tried friend."

"I thank you, sir, for what you have said," said the captain. "In reply, I can only ask you to believe that, happen what may, you will not find me wanting."