I know not what. But do you think we can make it?"

"Well, we can at least try. There doesn't seem to be a guard in the rear.
I am going to cut a big slit in the back. Then we'll slip the bicycles
through it, mount and make a dash."

"Good!" said Hal.

Quietly Chester slit the canvas in the rear of the tent, making a hole
large enough for a man to step through. Quietly the boys each selected a
bicycle and pushed it cautiously through the opening.

Once on the outside they drew a breath of relief.

"We'll have to depend on our luck now," whispered Chester. "Come on!"

The lads leaped into the saddles, and a moment later were speeding
through the heart of the German camp.

In the very boldness of their scheme lay a certain degree of safety, for
the sentinels on guard certainly did not look for two youths of the
allied armies to be riding through their midst.

They were not even challenged as they sped through the camp, turning this
way and that, and they had passed beyond the last row of tents before a
hubbub from the rear told them that their flight had been discovered.

"We must be careful," cried Hal, as he rode his wheel close beside
Chester. "There is still the outpost to pass."