“It’s just a case of keep moving,” Stephan explained. “Of course, it might be possible for us to join forces, but then we should greatly lessen our effectiveness.”

Alexis, who was in front, stopped suddenly and threw up a warning hand. Immediately the other three halted in their tracks. Peering in the direction in which Alexis pointed, they made out the forms of half a dozen German soldiers standing near a tree. Directly, however, the latter made off, and the little party approached the tree.

“Another placard, eh?” muttered Stephan, as he drew near.

The other three also approached and read:

“The time for surrender has been extended till to-morrow at noon!”

Angrily, Stephan snatched the placard from the tree. Turning, he saw several other trees also bearing placards. These he also tore down.

“Surrender, eh!” he cried. “Never!”

Suddenly he clapped his hand to his side and staggered back. At the same instant, from directly ahead, came the sharp crack of a rifle. But Stephan did not fall. Recovering himself, he dashed straight in the direction of the shot at top speed. There came the second crack of a rifle, but still the Cossack did not pause.

Now Hal, and Chester, dashing after him with Alexis at their side, saw Stephan pause momentarily, raise his rifle and fire quickly twice. Then he dropped to the ground. But it was not from injury, as the others feared, for at that moment there came a volley and bullets whistled overhead. Quickly Hal, Chester and Alexis also flung themselves to the earth.

Stephan, lying upon his stomach, was pumping lead steadily straight before him. Hal, Chester and Alexis drew their revolvers and joined in the fray. Through the trees they could now make out the number of their assailants. There were an even dozen of them, all lying in a little clearing, their rifles trained upon the spot where the four friends lay.