The removal of one bar would leave only a narrow exit through which a man could squeeze and, thinking that this might delay them, the Frenchmen, rather unwisely I consider, decided to cut a second bar.
Now whether they were really betrayed, as we believe, by one of the French orderlies who for some time had been under suspicion as a spy, or whether some one on the far bank of the canal had happened to see or hear them, we never knew, but it is certain that the Germans learnt, without getting exact details, that one of the bars in the latrines was being cut. The "Blue Boy" visited the latrines four times in a couple of hours and examined the bars with care, but without finding anything wrong. At last the Commandant and the Feldwebel walked up outside our windows, and the latter taking each bar in turn shook it violently. About the fourth one he shook came off in his hands and he fell down flat on his back.
The Germans brought up barbed wire and wound it round and round the bars and across the hole. Besides this, they put an extra sentry to watch the place. It seemed at first hopeless to think of escaping that way. The Frenchmen gave it up, but I kept an eye on it for a week or so, and as a precaution obtained leave from the Frenchmen to use it if I saw an opportunity.
One very cold night about a week later I was standing in the latrines and watching the sentry stamping backwards and forwards on his 20-yard beat, when it seemed to me just possible that the thing might be done. I fetched Medlicott and Wilkin, who had some wire-cutters. Medlicott took the cutters and, choosing a favorable moment, cut the tightest strand of wire. It seemed to us to make a very loud "ping," but the sentry took no notice, so Medlicott cut eight more strands rapidly.
Leaving Wilkin to guard the hole Medlicott and I rushed off to change in the dark, because if we lighted a lamp any sentry passing our window could see straight into the room. It was half an hour after midnight when we started to change, but by 1.15 a.m. we were ready—our rücksacks, maps, compasses, and all were lying packed and hidden. Over our warm clothes we wore white underclothes, as there were several inches of snow on the ground outside; and over our boots we had socks, as much to deaden the noise as to prevent our slipping as we crossed the frozen moat.
Outside, the reflection from the snow made the night seem bright, but there was a slight haze which prevented white objects such as ourselves being seen at a greater distance than about 100 yards.
In the latrines it was as dark as pitch, so that, though we stood within a few yards of the sentry, we could watch him in safety. It was only safe to work when the sentry was at the far end of his beat; that is to say, about 15 yards away. Medlicott cut the wire, whilst Wilkin and I watched and gave him signs when the sentry was approaching. Owing to repeated halts, it was a long job. The sentries glanced from time to time at the wire, but all the cuts were on the inside of the bars and invisible to them. Removing the bits of wire when they had all been cut was like a complicated game of spillikins, and it was not till nearly 4.30 a.m. that Medlicott had finished. It was a long and rather nerve-racking business waiting in the cold to make a dash across the moat.
Medlicott and I tossed up as to who should go first, and he won. It was not easy to choose the right moment, for almost our only hope of getting across without a shot was when the two sentries were at their beats farthest from us, and one of these sentries was invisible to us, though we could hear him stamping to keep warm as he turned at the near end of his beat.
At last a favorable moment came and Medlicott put his head and shoulders through the hole, but stuck half-way. He had too many clothes on. We were only just in time to pull him out of sight as the sentry turned. He took off some clothes and put them in his sack and tried again, though we had to wait some time for an opportunity. Again he found he was too fat—and what was worse got hung up on a piece of barbed wire. We made what seemed to us a fearful noise hauling him in and disentangling him, but the sentry took no notice. Then Wilkin rushed off and got a second sack, into which Medlicott packed several layers of clothes. Another long wait for a suitable moment. We heard the sentry on our left come to the end of the beat, then it sounded as if he had turned and his steps died away. The man on our right was at the far end of his beat. Now was the moment. With a push and a struggle Medlicott was through the hole. I went after him instantly, but stuck. A kick from Wilkin sent me sprawling on to the snow on the far side. In a few seconds we were crossing the moat, I a couple of yards behind Medlicott, as fast as our heavy kit and the snow would let us. We were almost across when "Halt! Halt!! Halt!!" came from the sentry on our left. He had never gone back after all, but had only stamped his feet and then stood still. On the far side of the moat was a steepish bank lined with small trees; we tore up this and hurled ourselves over the far bank just as the first shot rang out. We were safe for the moment—no sentry could see us, but shot after shot was fired. Each sentry in the neighborhood safeguarded himself against punishment by letting off his rifle several times. Milne, who knew we were escaping and was lying in bed listening, told me afterwards that he had felt certain that one of us had been hit and that they were finishing him off. For several hundred yards we went northwards across the fields, only halting a moment to pull off the socks from our boots. Then we turned left-handed, intending to make a big circuit towards the south so as to avoid passing too close to the battery which flanks the fort.
When we had gone about 400 yards we saw behind us lights from several moving lanterns and realized that some one was following on our tracks. It was very necessary to throw off our pursuers as soon as possible, because there was little more than a couple of hours before the daylight, so we changed our plan and made towards a large wood which we knew was about a mile and a half northwest of the fort.