t was by a mere chance that Labenstein, when I was
with him, came upon your films after the gas attack. He thought to
profit personally from selling them, which is why he did not turn them
over at once to his superiors. Ever since then he has been trying to
dispose of them to enrich himself. And I have been trying to find a way
to get them back to you without betraying myself and my mission.

"At last chance favored me. The big air attack came just after I had
secured all the information I wanted. I was about to go back to my
comrades and arrange for the capture of Labenstein if I could. He still
had the films and was about to sell them to another German--a traitor
like himself.

"Then came the big explosion, and he was fatally hurt. We both took
refuge in the tunnel, Labenstein carrying with him the films, and you
came just as Labenstein died. Well, perhaps it is better so."

"Yes," agreed Blake, "I think it is."

"And we have the films back!" exulted Charlie.

"But, best of all, we know Lieutenant Secor is straight!" cried Joe.
"I'd hate to think anything else of him, after he saved our lives."

"Yes," agreed Blake softly.

"And now to get back on the job!" cried Joe, after a moment of silence.

And so the moving picture boys again took up their perilous calling.
They soon recovered from their slight injuries caused by the cave-in of
the tunnel, and, finding their cameras where they had left them in the
French house, resumed the turning of the cranks.

They filmed many stirring scenes, and the records they made now form an
important part of the archives of the War Office in Washington, the
films so strangely lost and recovered being considered most valuable.

Lieutenant Secor became one of the boys' firmest friends, and through
his help they were enabled to obtain many rare views. And now, having
seen them safely through some of their perils, we will take leave of
them.

THE END

[Transcriber's note: Some of the adverts appeared at the start of
the book and repeated at the end. The duplicates have been removed,
and the remaining series (Motion Picture Chums) have been added here.]

THE MOVING PICTURE BOYS SERIES

By VICTOR APPLETON

12mo. BOUND IN CLOTH. ILLUSTRATED. UNIFORM STYLE OF BINDING.

Moving pictures and photo plays are famous the world over, and in this
line of books the reader is given a full description of how the films
are made--the scenes of little dramas, indoors and out, tri