two pistols,
and he looked as if he would be willing to use the weapons upon the
slightest provocation. He was a burly, red-faced man, and only about
half dressed. Evidently he had been sleeping soundly when they had
come aboard.

"You back up there into a corner," growled the German. He spoke
English quite well, although his accent was Teutonic.

The young cadets did not know what else to do, and so obeyed the
command. As they were in uniform, the German took them to be American
soldiers, and this disturbed him greatly.

"Are there any more in your party or are you alone?" he demanded.

This question gave Jack a sudden idea.

"Alone?" he cried. "Not much! There are over a hundred of us," he
answered, referring, of course, to the number of cadets at Colby Hall.

"Are you telling the truth?" growled the German, and his voice
betrayed his nervousness.

"He sure is telling the truth! Look behind you and see," said Fred,
and began to laugh in a suggestive way.

This laugh took the German off his guard, and he turned swiftly to see
who might be behind him. It was the opportunity that the young captain
and the young lieutenant had hoped would come, and, taking a perilous
chance, they threw themselves on the back of the German, each at the
same time catching hold of a hand that held a pistol. Then Gif rushed
in; and between them the cadets succeeded in hurling the fellow,
muscular though he was, to the floor.

"Give up!" cried Jack suddenly, and, bringing out his flashlight, he
placed the cold glass of the end against the German's neck.

"_Kamerad! Kamerad!_" yelled the fellow promptly, thinking that it was
a pistol which was pressing upon him, and on the instant he released
his hold on the two pistols while he stretched out flat on his chest
on the floor of the submarine.

Jack lost no time in picking up one of the pistols, while Fred picked
up the other. The flashlight was turned over to Gif, who, meanwhile,
had armed himself with a steel bar.

"Now the question is--what are we going to do with this fellow?"
remarked Jack, after the short encounter had come to an end. It must
be confessed that he and the others were much worked up over the
situation, for they had not dreamed of coming in such personal contact
with one of the enemy.

"We've got to get out of here, and do it quick," returned Gif. "Those
other Germans may come back at any minute."

"Yes, but we'll have to take this fellow along," said Fred. "