fellow was a
clean-shaven man, but it was proved that he was in the habit of
wearing a heavy wig and a heavy false beard.

"That fellow is one of the two we saw in New York talking to Mr. Brown
and Mr. Martell!" cried Randy. And he was right, as it afterwards
proved.

For catching these two men who, it was later proved, had caused the
wreckage at the ammunition plant, the reward offered was divided
equally between Jed Kessler, the four Rovers and Gif and Spouter, much
to their satisfaction.

"This gives each of us a very neat bank account," declared Spouter.
"I'm going to save most of it, but some of it I'll spend this summer
on my vacation."

"Maybe we'll all do that," put in Andy.

From the authorities it was learned that Slogwell Brown had owned a
large portion of the shore front lying between Camp Huxwell and Camp
Barlight. He had sold all his holdings to the government, but this had
not prevented the unscrupulous man from making a deal with some German
agents for the use of the cave under the cliff by our country's
enemies.

"He was a rascal both ways," declared Captain Dale, in talking the
matter over with the Rovers. "He took the government's money at one
end and the Germans' money at the other. It is right that he goes to
jail."

And to jail Slogwell Brown went, accompanied by Nelson Martell, each
to serve a number of years at hard labor. Slugger and Nappy were sent
to a detention camp in the South; and that for the time being was the
last the Rovers heard of them.

Although there was considerable excitement around the encampment
caused by the discovery of the German submarine base, the cadets were
not allowed to forego their drilling and their army maneuvers. Nor did
they give up the athletic contests they had promised themselves. There
were swimming races and boat races, and likewise several baseball
matches, and also contests in running, high and broad jumping, and in
a tug-of-war.

"I'll tell you one thing--this encampment is one long to be
remembered," remarked Jack, when the outing had almost come to an end.

The next day came a message from Camp Huxwell. The fathers of the
Rovers, as well as many of their friends, were to depart immediately
for Hoboken, there to take one of the big transports for France. Of
course, the boys, as well as their sisters and their mothers, went to
see Dick, Tom, and Sam Rover off.

"The best of luck to you, Dad!" cried Jack, when the time came for
parting. "I