المنديل الأصفر

...A great wall of fog advanced across San Pablo Bay to meet us, and in a few minutes the Reindeer was running blindly through the damp obscurity. Charley, who was steering, seemed to have an instinct for that kind of work. How he did it, he himself confessed that he did not know; but he had a way of calculating winds, currents, distance, time, drift, and sailing speed that was truly marvellous....