He thought about this for a moment. After a two-day battle fought so desperately, the chances of there being any French cavalry still capable of harrying the retreat from a flank were remote. The flank guard was therefore no more than a drill-book precaution. Certainly it was not worth taking risks for. He gave a brief word of command and the column began to turn into the forest again towards the road. He had no great fear of his disobedience being discovered. If it were, he would simply say that he had lost his way; he would not be severely punished for failing to do an officer’s duty. In any case, he had more important matters to consider.

Food was the first thing.

Luckily, the haversack beneath his long cloak still contained most of the frozen potatoes he had looted from a farm building the previous day. They must be eaten sparingly; and secretly. At times like these, a man known to have private stores of food went in some danger, whatever his rank. However, the potatoes would not last long and there would be no soup pots bubbling at the end of this march. Even the horses would be better off. None of the supply wagons had been lost and there was a day’s fodder still in them. The men would starve first.

He fought down a rising sense of panic. He would have to do something soon and panic would not help him. Already he could feel the cold eating into him. Not many hours could elapse before fever and exhaustion took irrevocable charge of the situation. His knees tightened involuntarily on the saddle flaps, and at that moment the idea came to him.

The horse had started and passaged a little at the pressure. Sergeant Schirmer relaxed his thigh muscles and, leaning forward, patted the animal’s neck affectionately with his left hand. He was smiling to himself as the horse walked on again. By the time the detachment reached the road his plan was made.

For the rest of that night and most of the next day the Prussian corps moved slowly eastward towards the Masurian Lakes; then it turned north to Insterburg. Soon after nightfall, and on the pretext of rounding up a straggler, Sergeant Schirmer left the detachment and rode south across the frozen lakes in the general direction of Lötzen. By morning he was south of that town.

He was also nearly at the limit of his strength. The march from Eylau to the point at which he had deserted had been bad enough; the cross-country journey from there would have taxed even an unwounded man. Now, the pain of his arm was at moments intolerable and he was shaking so much from fever and the bitter cold that he could scarcely stay in the saddle. He was beginning to wonder, indeed, if he might not have been mistaken in his estimate of God’s intentions, and if what he had supposed to be a sign of Divine favour might not prove to have been an intimation of approaching death. He knew, at all events, that if he did not very soon find shelter of the kind his plan called for, he would die.

He reined in and with an effort raised his head again to look about him. Far away to the left across the white desolation of a frozen lake he could see the low black shape of a farmhouse. His eyes moved on. It was just possible that there was a nearer building to investigate. But there was nothing. Hopelessly he turned his horse’s head in the direction of the farmhouse and resumed his march.

The area into which the Sergeant had ridden was, although at that date part of the Kingdom of Prussia, inhabited mainly by Poles. It had never been very prosperous; and after the Russian army had passed through it, commandeering the winter stores of grain and fodder and herding away the livestock, it was little more than a wasteland. In some villages the Cossack horses had eaten the very thatch from the roofs, and in others the houses had been gutted by fire. The campaigns of the armies of Holy Russia could be more devastating for her allies than for her enemies.

The Sergeant, himself an experienced campaigner, had not been unprepared for devastation. Indeed, his plan had depended upon it. Country that had just supplied a Russian army would not attract another army for some time to come. A deserter might consider himself reasonably safe there. What he had not been prepared for, however, was the absence of a starving population. Since dawn he had passed several farmhouses, and every one had been abandoned. He had realized by now that the Russians had been more exacting even than usual (perhaps because they had been dealing with Poles), and that the inhabitants, unable to conceal enough food to keep them alive until the spring, had trekked to places farther south that might have been spared. For him, therefore, the situation was desperate. He could perhaps stay in the saddle for another hour. If all the peasants in the immediate vicinity had gone with the rest, he was finished. He raised his head again, blinking to free his eyelashes from the ice that clung to them, and peered ahead.