"That trench is about 100 metres from our front trench," said the Lieutenant. "The Germans have got all that barbed wire before their front trench, but we don't need wire because we have the Y—— Canal right before our front trench. Only it flows so close under the breastworks that you can't see it from here."

A great cloud of jet-black smoke suddenly welled up from the Belgian front trench.

"Ah, that's a six-inch bomb they've thrown into our trench with one of their 'minenwerfer,'" exclaimed the Lieutenant.

The report of the explosion from where we stood, not more than 250 metres away, was not loud.

The artillery was hard at it. Big clouds of black smoke rose sluggishly by the German trench where the Belgian high-explosive shells were bursting. Livelier clouds of white indicated the shrapnel explosions.

I was craning my neck to see what damage was being done the German trench when a whole swarm of bullets struck very close indeed to my head. The Lieutenant pulled me down into the trench.

"They shot at you that time, all right!" he laughed.

"Impossible!" I answered. "I can only barely see their trench over the top of your first-line trench, so how could they possibly see me from there?"

"Ah, but they were not shooting at you from there. They are up in the tops of some of those trees," he explained, pointing to the row of tall, innocent-looking trees. "Their sharpshooters climb up at night and snipe from there all day, and those of them whom we do not locate and kill climb down again the next night. They have telescopic sights on their rifles, and these rifles are mounted on little tripods so that they can fix their aim immovably on some spot where they think they have seen a movement; and the next time the movement comes, ping! Only I don't think they can use the tripods up in the trees."