"What was on it?" said Dennis in answer to the questions of the Flight later on. "It was a notice in German. Maybe it was bad German, but it was a dash good notice. It said 'No Thoroughfare,' and I fancy we've taught the Huns what it means anyhow."

They, and a good many of their fellow squadrons, had, on this and on other road and rail Lines of Communication. They lost men and they lost machines; but the expected fresh attack on the line did not develop at dusk as foretold.

And that night the weary troops slept a solid life-renewing six hours.


XVI
THRILLS

It was a bad day for kite-balloon work; first, because the air was not clear and the visibility was bad, and second, because there was an uncomfortable wind blowing, and the balloon was jerking and swaying and lurching at the end of its long tether, making it hard for the observers to keep a steady eye on such targets as they could pick up, and still harder to plot out angles and ranges on the map spread on the table sticking out from the side of the basket.

But hard fighting was going on, and the line was getting badly hammered, so that every balloon which could get up was in the air, and every observer was hunting for hostile battery positions, directing the fire of our guns on to them, and doing all they could to lessen the shell-fire that was pouring down on our infantry in their scanty trenches. At times a swirl of mist or cloud came down and shut off the view altogether from the balloons; but they hung on, and stayed aloft waiting for a clear and the chance to observe a few more rounds the moment they got it.

In one balloon the two observers had been sitting aloft for hours, after an early rising and a hurried breakfast. They had only been having fleeting targets at intervals as the haze cleared, but any danger of becoming bored was removed by the activities of a certain anti-balloon gun which did its best to shoot them down whenever it could get a sight on them, and by the excitement of watching out for an air attack whenever the low clouds came down and offered good cover to any Hun air man who cared to sneak over above them and chance an attack.