"I am ready to do what I can for France, colonel," said Frank, simply. "That is all I can say."
"Or I, or any of us," said Colonel Menier. "Listen well, then. I shall tell you things that no one else is to know. You, Martin, know the country here? You can find your way about?"
"Yes, my colonel."
"I want you to take certain messages for me to the English headquarters. Where it is to-day, I know. It is here—see, on the map?"
They looked at the spot he indicated, and concealed their surprise. They had supposed the English much nearer the border.
"Where it may be to-morrow I cannot tell. But it is of the greatest importance that the papers I give you be delivered at headquarters. It is so important that we will not trust them to the telephone, to the telegraph, to the field wireless. They are reports of the most confidential nature, having to do with movements that will be of great importance a few days from mow. You will not wear your uniforms of Boy Scouts for the work in hand."
Neither of them said anything.
"That, you will understand, is because the uniforms would make you more than ever conspicuous to the Germans. I do not think you will be anywhere near the Uhlans. But in war one must not think; or, if one does, one must think of all things that may happen. So you will wear your ordinary clothes. You have one day, two days, three, if necessary, to find the British headquarters. No more. These papers are written on the thinnest of paper. It is so thin that the messages are contained in these marbles that I give you—one to each of you."
They took the marbles and still they made no comment.
"If you are captured and searched, I believe you will have very little to fear. It is not likely that a German officer, no matter how zealous he may be, will be over-suspicious of a lot of marbles in a boy's pocket. You will have a pocket full of them, and they will all look alike. And if the Germans find you are only boys moved by the curiosity of boys to see battlefields, they will not hurt you. I do not believe they will even hold you. Probably they will not even take your marbles away from you, thinking them harmless playthings, never once dreaming of their secret. Only the officer at our headquarters who knows of your coming will be able to distinguish one marble from another. How he will do so, it is better that you should not know."