Percy had been listening with interest to the conversation.

“You got some nice job, you boys. But if you bring him down, there will be a lot of chuckling in the trenches. You won't hear it, but they will all be saying, 'Bravo! Épatant!' I've been there. I've seen it and I know. Does 'em all good to see a sausage brought down. 'There's another one of their eyes knocked out,' they say.”

“Percy is right,” said J. B. as we were walking down the road. “Destroying a balloon is not a great achievement in itself. Of course, it's so much equipment gone, so much expense added to the German war-budget. That is something. But the effect on the infantrymen is the important thing. Boche soldiers, thousands of them, will see one of their balloons coming down in flame. They will be saying, 'Where are our airmen?' like those old poilus we met at the station when we first came out. It's bound to influence morale. Now let's see. The balloon, we will say, is at sixteen hundred metres. At that height it can be seen by men on the ground within a radius of—” and so forth and so on.

We figured it out approximately, estimating the numbers of soldiers, of all branches of service, who would witness the sight. Multiplying this number by four, our conclusion was that, as a result of the expedition, the length of the war and its outcome might very possibly be affected. At any rate, there would be such an ebbing of German morale, and such a flooding of French, that the way would be opened to a decisive victory on that front.

But supposing we should miss our sausage? J. B. grew thoughtful.

“Have another look at the orders. I don't remember what the instructions were in case we both fail.”

I read, “If number 1 fails and number 2 is successful, number 3 will attack the observers. The patrol will then proceed to the aerodrome by the shortest route.”

This was plain enough. Allowance could be made for one failure, but two—the possibility had not even been considered.

“By the shortest route.” There was a piece of sly humor for you. It may have been unconscious, but we preferred to believe that the commandant had chuckled as he dictated it. A sort of afterthought, as much as to say to his pilots, “Well, you young bucks, you would-be airmen: thought it would be all sport, eh? You might have known. It's your own fault. Now go out and attack those balloons. It's possible that you may have a scrap or two on your hands while you are at it. Oh, yes, by the way, coming home, you'll be down pretty low. Every Boche machine in the air will have you at a disadvantage. Better return by the shortest route.

One feature of the programme did not appeal to us greatly, and this was the attack to be made on the observers when they had jumped with their parachutes. It seemed as near the border line between legitimate warfare and cold-blooded murder as anything could well be.