h to show Lieutenant Commander Darrin to his quarters and
extend to him any courtesies that you properly may. It is not fitting
that a man of his rank should have to receive orders from a seaman."

"This way," directed von Schellen, briefly. He led the way down the
narrow passage to a curtained doorway.

"In here you will find your home until we reach Germany," said von
Schellen. "If you wish exercise you may leave your sleeping cabin and
walk back and forth in this passage-way. If the ober-lieutenant should
decide to be gracious enough to invite you to the wardroom, then you will
also have the freedom of that room--at meal hours only. You will not go
to any other part of this craft."

With a curt nod the young lieutenant left Dave. Perhaps von Schellen had
done his best to be courteous.

Pulling back the curtain Dave looked in. It was a stuffy little place,
just long enough to hold two berths, one above the other, against the
outer shell of the submarine. In the upper berth Captain Kennor lay at
full length, a hand over his eyes.

"We are cabin-mates, then?" Dave asked, gently.

"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