For some time Yamaguchi was too intently occupied in navigating the vessel between the Elliott and the Blonde islands to concern himself with Bob. But when he was through the strait he left the bridge and went below to get something to eat. Then for the first time he told Bob what his mission was. He had been ordered to survey the coast-line of Korea Bay as far as the Yalu, to report on the state of the ice, and especially to examine the condition of things at the mouth of the river. If he could at the same time pick up any information as to the disposition of the Russian forces along the shore, so much the better; but though he might run any personal hazards, he was on no account to risk his vessel; in war time destroyers cannot easily be replaced. "You’re fixed up for ten days, you see," he said to Bob. "I’m to be back in that time, and you’re bound to remain with me." "You’ll have to go ashore, I suppose," said Bob. "Yes, if I can get through the ice. And I think I can. I’ve been this way before; I suppose that’s why the admiral selected me for the job. Unless it’s because one of our engines is out of action. The ice usually clings to the shore till some time after this, but just before we reach Taku-shan there’s a spit of land where, by some movement of the currents, the ice is sometimes loosened; and if I’m lucky, there’ll be passage-way for a boat, if not for the destroyer herself." "I say, you’ll let me go with you." "Certainly not. I’m already one notch down through not being able to put you on the _Yoshino_, and I can’t afford to report you gone for good." "But why shouldn’t I go where you go?" "Well, for one thing, it’s my job and not yours. The admiral has plenty of lieutenants, but only one Bob Fawcett! Besides, why take you into danger? If the Russians catch me, I’m shot. Well, that’s part of my work; but you—you’d be shot too, and an Englishman is worth—how many of any other nation?" "Too many to count," said Bob smiling. "Anyhow, you’re twice as heavy as me, and nearly twice as tall; and another thing, you’d find it hard to pass for a Chinaman." "Oh! you’re going in for disguises, then." "Yes, I shall stick on a pigtail; I won’t be caught if I can help it." "D’you know, I’ve an idea. Your mention of a disguise makes me wonder if that Chinaman I saw in Seoul wasn’t a Chinaman after all. I saw him before at Sasebo with another fellow; there was something about them I seemed to know. D’you think they were really Japanese I had caught sight of in Tokio?" "It’s possible, of course; but I shouldn’t jump to conclusions. Their disguise must have been pretty feeble if you saw through it after only a casual glimpse in Tokio." "Ah! I’ve a good memory for faces. But let us go on deck, it’s so horribly cold down here."