ing about in them and almost in
front of him a well-hidden machine gun was traversing No Man's Land
in an oblique direction, striking the British at such an angle as
to make it difficult for them to locate it.

Tarzan watched, toying idly with the rifle of the dead German.
Presently he fell to examining the mechanism of the piece. He
glanced again toward the German trenches and changed the adjustment
of the sights, then he placed the rifle to his shoulder and took
aim. Tarzan was an excellent shot. With his civilized friends he
had hunted big game with the weapons of civilization and though he
never had killed except for food or in self-defense he had amused
himself firing at inanimate targets thrown into the air and had
perfected himself in the use of firearms without realizing that
he had done so. Now indeed would he hunt big game. A slow smile
touched his lips as his finger closed gradually upon the trigger.
The rifle spoke and a German machine gunner collapsed behind his
weapon. In three minutes Tarzan picked off the crew of that gun.
Then he spotted a German officer emerging from a dugout and the
three men in the bay with him. Tarzan was careful to leave no one
in the immediate vicinity to question how Germans could be shot in
German trenches when they were entirely concealed from enemy view.

Again adjusting his sights he took a long-range shot at a distant
machine-gun crew to his right. With calm deliberation he wiped them
out to a man. Two guns were silenced. He saw men running through
the trenches and he picked off several of them. By this time the
Germans were aware that something was amiss--that an uncanny sniper
had discovered a point of vantage from which this sector of the
trenches was plainly visible to him. At first they sought to discover
his location in No Man's Land; but when an officer looking over
the parapet through a periscope was struck full in the back of the
head with a rifle bullet which passed through his skull and fell
to the bottom of the trench they realized that it was beyond the
parados rather than the parapet that they should search.

One of the soldiers picked up the bullet that had killed his
officer, and then it was that real excitement prevailed in that
particular bay, for the bullet was obviously of German make. Hugging
the parados, messengers carried the word in both directions and
presently periscopes were leveled above the parados and keen eyes
were searching out the traito