Zaidos, who was still on sick list and walked with a cane, was nevertheless put to work, in order to familiarize him with the position of the trenches. For two weeks the English had been expecting an attack, and the inaction was telling on the nerves of the officers.

The men are only kept under fire for four days. At the end of that time, they are sent back a few miles in shifts to the nearest village where they find quarters, and rest from the nerve-racking, soul-shaking clamor of guns and buzz of bullets. The trenches were wonderful. Zaidos and Velo, the Red Cross badges on their arms giving them free passage, soon explored every inch until they were perfectly familiar with them all. Zaidos drew a sketch of the plan to send to the fellows in school.

First of all, and nearest the opposing force, is the line of the small trenches for the snipers or sharp-shooters. These men, facing certain death in their little shelters, are picked shots, and keep up a steady, harassing fire at anything showing over the tops of the enemy's trenches or, failing that, at anything that looks like the crew of a rapid-fire gun. These, of course, they guess at from the line of fire as the guns are placed in the first line of trenches in little pits of their own. On his map Zaidos marked the positions of the guns with an A.

Behind the snipers are the barbed wire entanglements, a nightmare of tumbled wires piled high in cruel confusion. Close behind this are the observation trenches. There was no firing from these small trenches; they were simply what the name implied: look-outs. Leaving these, and passing down the zig-zag connecting trench, the first line trench was reached. This was fifty yards from the wire entanglements, and along here the rapid-fire guns were set.

Trench layout diagram

When Zaidos and Velo made their first visit through the trenches, they were puzzled to see that the guns were all set at an angle, so that the line of fire intersected, usually just over the barbed wire entanglements.

Zaidos asked about it.

"We protect our guns in that way," explained the young Lieutenant who accompanied them. "With the fire coming at an angle, it is difficult for the enemy to get the exact position of our guns, and they are unable to follow the line of our fire with their own fire, and so cripple us. On the other hand, you notice that all trenches are either battlement shape or zig-zag."