That settled it in Phil’s mind. There would be no “over the top” from the enemy lines that night. Probably, after all, he was mistaken in assuming that the boches, conscious of their own insufficiency of reserves, would hesitate to make a morning attack. They were planning to harass the Yanks all night with gas and a hurricane of shells, and in the morning make a charge that would sweep everything before it.

With the putting on of the masks, the conversation between Phil and Tim stopped. It really seemed that the former’s soliloquy following this operation was better reasoning than his earlier conjectures had been. The cannonade that followed the “gas wave” was terrific and it seemed that such a barrage must mean something in the nature of a sequence, but they would hardly charge right into the gas they had shelled into the Yank’s lines.

But again Phil was privileged to change his mind, and that very suddenly. The bombardment continued until after dark and many shells exploded perilously near the Pershing forces—a few did fatal damage right in the midst of the waiting Americans at the edge of the woods.

At about 9:30 o’clock this bombardment ceased as suddenly as it had begun. Neither Phil nor Tim had taken part in or witnessed a night attack, except in the nature of a cannonading, since their first experience on the Verdun front, and they were greatly astonished at what came next.

But they were not without warning, for the signal service was on the qui vive constantly, as were also the advance sentries, and about two minutes before there was any sign of the approach of the enemy, word went along the line to be on the lookout for an attack.

“So my first surmise was right, after all,” Phil mused. “They’re going to attack under cover of the darkness so that they may retreat more successfully if their attack fails.”

Another surprise was coming not only to Phil and Tim, but to many other “dug-in” Marines along the American front. It had to do with the character of the attack.

Suddenly the American lines were swept with a sharp, snappy, vicious machine-gun fire. The boches had crept up under cover of the darkness and succeeded in planting a score or more of machine guns at various places in the timber a hundred yards ahead and started pumping a murderous storm of bullets at the doughboys.

But fortunately it was murderous in sight and sound chiefly, for very few of the Yanks were hit. In the first place, it was almost a random attack, for the muzzles of the guns were elevated a degree or more too high to rake the edges of the funk holes in which the Americans were crouching. Moreover, the intervening trees intercepted many of the bullets, as was evident from the tattoo thuds that could be heard even amid the noisy spitting of the machine guns.

Just what the enemy hoped to accomplish by this method of attack it was difficult at first to determine, although the Yanks were destined to discover very shortly that it was a clever sort of camouflage.