answer, two shots were fired from behind,
accompanied by a shouted command to halt. The bullets from the rifles
passed through the wagon between the two lads, but did no damage; and
almost instantly the Germans charged down on them. Three shots rang out
as they passed the wagon, but the boys were not touched.

The Germans passed on, and then, circling back, prepared for another
charge. Hal had fired at them several times, but, owing to the bumping of
the wagon, his shots had not found a mark. But, if the bumping of the
wagon had spoiled his aim, it had probably saved the lads' lives, for it
made accurate shooting by the Germans impossible.

Down came the Germans again, shooting as they passed by. And again the
boys were unharmed. Hal and Chester were now yelling at the top of their
voices--why, they never knew.

Hal, crawling to the back end of the wagon and, looking out, saw the
Germans ready to charge down on them again. One man, however, was jogging
along close behind the wagon, his revolver held in his hand.

As Hal looked out, the German stopped his horse and fired. Hal dodged
back sideways. The bullet whizzed through the hole in the canvas in the
rear, grazed Hal's head, and struck the back of the seat near Chester.
Chester did not even turn, but, with cries and blows, continued to urge
the mules on.

As quick as he could, Hal rushed to the hole and fired at his opponent,
but failed to hit him. At the same instant another bullet came through
the side of the wagon, and struck his revolver, and the weapon fell to
the road. Hal dodged back inside.

Then the Germans bore down on them again, firing into the wagon as they
passed it. Hal sprang to the front of the wagon. One German had stopped
and was taking aim at Chester. Hal raised his revolver, and, taking a
snap shot, fired. The bullet went true, and the German fell to the road.

"I've hit one of them, Chester!" called Hal.

"Bully for you!" came back the response, and Chester continued to ply his
whip on the backs of the galloping mules.

Once more the remaining two Germans turned and came back, but this time
they did not fire as they passed the wagon. Hal rushed back to the rear
of the wagon and looked out.... One German rode close behind and to the
right of the wagon.

Bracing himself, Hal quickly stuck his revolver through the hole, but
before he could fire, the German flopped over on one side of his horse,
and all that could be seen of him was his a