Step by step the reluctant King was driven towards Silesia. Before the end of November it was plain that his whole enterprise must be abandoned. It was mid-December before the last detachments of some 40,000 men, the remnant of his 80,000, straggled across the mountains to the friendly walls of Glatz. Thanks to the determination of Maria Theresa, a postscript had yet to be added to the history of the campaign. In the spirit of her own Hungarians, who scorned to provide a commissariat because their forefathers had journeyed from Asia to the Land of the Five Rivers without one, the Queen dictated a winter assault upon Silesia. The Old Dessauer, whom Frederick had left in command, at length succeeded in clearing the province of anything like an Austrian army, but it was not till February that the Prussians were able to go into winter quarters. Thus a campaign which had begun with the conquest of Bohemia came to an end to the sound of _Te Deums_ sung at Berlin for the deliverance of Silesia. Europe began to suspect that the sword of Traun had pricked the Prussian bubble. The anxiety with which Frederick awaited the spring of 1745, when he must expect to have to fight in earnest for Silesia, was rendered more intense by a sudden change in the attitude of his allies. He had joined in the struggle with the expectation that Austria would be attacked by the French and hampered both by the war in Italy and by the forces of the Emperor. On January 20th, however, Charles Albert died, and the youth who succeeded him was soon beaten to his knees. By the Treaty of Füssen, in April, Austria and Bavaria agreed to ignore the past; and the latter for the first time guaranteed the Pragmatic Sanction and promised to vote for the husband of Maria Theresa at the imperial election. The effect of this treaty upon Frederick’s position will be appreciated when it is borne in mind that the road from France to Austria passed through Bavaria, while the Austrian Netherlands, which France coveted, lay at her very door. Thus it was easy to suspect that in the coming campaign Prussia would receive little effective help from France. Suspicion passed into certainty when Louis XV. elected to accompany his army in person.