“Simply by having the good fortune to get the right clue from the beginning. It is very possible if I had known about this notebook it might have led away my thoughts, as it did yours. But all I heard pointed in the one direction. The amazing strength, the skill in the use of the harpoon, the rum and water, the sealskin tobacco-pouch with the coarse tobacco⁠—all these pointed to a seaman, and one who had been a whaler. I was convinced that the initials ‘ P. C. ’ upon the pouch were a coincidence, and not those of Peter Carey, since he seldom smoked, and no pipe was found in his cabin. You remember that I asked whether whisky and brandy were in the cabin. You said they were. How many landsmen are there who would drink rum when they could get these other spirits? Yes, I was certain it was a seaman.”

“And how did you find him?”