ed the man who spoke with a German accent. "I, however,
expect him here by eight o'clock this evening at the latest."

"Well, in that case there isn't anything left for us to do but to
wait," said Slogwell Brown, surlily.

"You may do that, or you may come back at that time," said the German.
"I am very sorry to keep you waiting, but as I said before, gentlemen,
it cannot be helped."

"I don't believe the two boys will want to wait outside for two
hours," said Mr. Martell to Mr. Brown. "Suppose we ride into town and
get a bite to eat, and then come back here?"

"That will suit me, Martell. Anything to kill off the time," answered
Slogwell Brown. He turned to the German. "We'll be back here by eight
o'clock. And remember! that money has got to be paid to-night."

"You shall have every dollar that is coming to you, gentlemen,"
answered the German, who, as it afterwards proved, was the commander
of the disabled submarine.

A few more words passed, and then Mr. Brown and Mr. Martell came out
of the cabin to where they had left Slugger and Nappy in the touring
car. They entered the machine, which was immediately backed to the
forest road, and then the whole party set off, Slugger driving the
car.

"Say, listen!" cried Spouter excitedly. "I believe that German is here
all alone! What do you say if we make him a prisoner?"

"No, no, don't do that!" answered Randy quickly. "We want to bag the
whole bunch. Let us get to camp just as soon as we can and notify
Captain Dale. Then he can organize a crowd and come back here and give
Brown and Martell and the Germans the surprise of their lives."

"But how are we going to find our camp?" questioned Spouter.

"Dead easy. If that is the road to Haven Point, it must pass through
Rackville, and if it does that, it must come pretty close to our camp.
Come on!"

CHAPTER XXIX

THE FIGHT ON THE SUBMARINE

It must be admitted that Jack, Fred, and Gif were much startled when
they suddenly found themselves confronted by an armed German who
looked as if he meant what he said when he commanded them to throw up
their hands.

On first going aboard the submarine the three cadets had been very
cautious, but as they had wandered around without seeing any one
aboard the craft, they had come to the conclusion that it was
deserted, and consequently they had become less careful both in their
actions and their conversation.

Of course their hands went into the air. The German had