spy is aboard this ship, and have tried to run down information about that man whose name has not been entered on the passenger list, and who came aboard late just before we sailed."
"Yes," hastily added the other musingly, "and the steward we interviewed, who carries the sick man's meals in to him, says he has the appetite of a horse; so we kind of suspect his keeping to his stateroom may be a blind after all. Once late in the night, you remember, you ran into a stranger who was muffled to the eyes, and who hurried away when you begged his pardon. Ever since you've been wondering if he was the sick man, and who might yet turn out to be that slick German spy, masquerading as a Swede; or a Swiss perhaps."
"Altogether it's getting to be a pretty mixed-up mess I must say," Tom continued. "If we have a pair of them aboard this boat, plotting to do something or other, it'll pay us to keep our eyes open wider than ever, Jack!"
