erous for either side to hold
it.

"We'll take a look in there," said Blake, when they had drawn near and
had discovered that the ruins of the concrete dugout had been covered
with brush, to "camouflage" it from spying airmen.

They approached cautiously, and, as they did so, they became aware of a
faint light coming from the ruins. So faint was it that at first it
seemed no more than the reflection of the stars, but a long look showed
that it was a light from within, but carefully screened.

"We've got to have a look in!" whispered Blake. "Maybe the films are
there, and maybe not; but some person is."

"Probably Germans," said Joe.

"Very likely. But it may be that Frenchman. If we could only capture
him!"

"I'd like a chance at him!" exclaimed Charlie.

"Hush!" cautioned Blake. The boys were now close to the hut, for that
was all it was since the bombardment. They tried on three sides of the
place to look in, but without success. Then, as they moved around to the
side which faced the German lines, they saw a crack through which the
light streamed in greater volume.

"Take a look, Blake," advised Joe.

His chum did so, and, with an exclamation of surprise and satisfaction,
turned away from the slot, motioning to the others to look for
themselves. And as Joe and Charlie looked they saw, seated on the ruins
of a machine gun and other things that had been in the place, Secor and
Labenstein. The two plotters had between them boxes which the boys had
no difficulty in recognizing as their missing war films.

Joe was about to utter an exclamation of delight when Blake softly put
his hand over his chum's mouth.

"Not a sound!" breathed Blake.

For a moment the boys stood looking in at the plotters and wondering how
they could capture them, or at least get back the stolen films.

And then a door, or what had been a door, to the dugout swung open with
a creak of its rusty hinges.

"What's that?" cried Secor, in French, starting to his feet.

"Only the wind," replied the German, in the tongue of his
fellow-conspirator. "Only the wind."

"Ah! I thought maybe it was----"

"You thought perhaps it was the boys who own these films, but who will
never see them again. I know not how valuable they may be--these
films--but I was told to get them, and I have. Let the ones higher up
decide on their value. But we must get our price for them--you and I. We
must get a good price. We have run a great risk."

"Yes, a grea