For several weeks the Austrians slowly and sullenly retired. Their retreat was conducted in two immense columns, by parallel roads at some distance from each other. Their wings of foragers and skirmishers were widely extended, so that the hungry army swept with desolation a breadth of country reaching out many leagues. Though the Austrian army was traversing the friendly territory of Bohemia, still Prince Charles was anxious to leave behind him no resources for Frederick to glean. Frederick, with his army, pressed along, following the wide-spread trail of his foes. The Austrians, with great skill, selected every commanding position on which to erect their batteries, and hurl back a storm of shot and shell into the bosoms of their pursuers. But Frederick allowed them no rest by day or by night. His solid columns so unremittingly and so impetuously pressed with shot, bullets, bayonet, and sabre-blows upon the rear ranks of the foe that there was almost an incessant battle, continuing for several weeks, crimsoning a path thirty miles wide and more than a hundred miles in length with the blood of the wounded and the slain. [Illustration: THE RETREAT OF THE AUSTRIANS.] The region through which this retreat and pursuit were conducted was much of the way along the southern slope of the Giant Mountains. It was a wild country of precipitous rocks, quagmires, and gloomy forests. At length Prince Charles, with his defeated and dispirited army, took refuge at Königsgraft, a compact town between the Elbe and the Adler, protected by one stream on the west, and by the other on the south. Here, in an impregnable position, he intrenched his troops. Frederick, finding them unassailable, encamped his forces in a position almost equally impregnable, a few miles west of the Elbe, in the vicinity of a little village called Chlum. Thus the two hostile armies, almost within sound of each other’s bugles, defiantly stood in battle array, each watching an opportunity to strike a blow.