"Yes, so I been told," the Dane answered gloomily.

"And you in the upper berth? Why did you not take the lower one? It is more comfortable."

"I vould no so presume!" protested the Dane. "Not wid a man of your rank."

"I haven't rank enough in our naval service to feel conceited about it," Darry smiled, "and you are considerably older than I. Any difference there may be in comfort is your due. Will you kindly exchange?"

Not without some difficulty did Dave succeed in inducing Captain Kennor to change to the lower, broader berth of the two. Dave, after removing his boots and some of his clothing, climbed to the upper berth, spreading a blanket over himself and lying down, for he felt that rest was absolutely needed.

At the noon-meal hour the ober-lieutenant sent an orderly to invite Darrin to the table, though the same invitation was not to be extended to Captain Kennor, who would be expected to eat with the German petty officers. But, as Dave and Captain Kennor were asleep at the time, the orderly departed without waking them.

It was past the middle of the afternoon when Dave Darrin at last awoke sufficiently to decide upon rising. Getting to the floor, and noting that Captain Kennor was still asleep, Dave dressed almost by stealth.

While he was still so engaged there came a slight knock at the door. A German petty officer looked in.

"The ober-lieutenant sends his compliments," announced the fellow, in English. "He will be pleased to have you join him. I will lead the way."

Dave followed, down the passage and out into the main cabin. There, at a table under the conning tower, sat the ober-lieutenant and the same younger officer.