But the ever-vigilant Frederick had smuggled a false sister into the society of the Catholic ladies, who kept him informed of every measure that was proposed. At the very hour when Frederick was dining with the two English ministers, and making282 himself so merry with jests and banter, he was aware that General Neipperg, with the whole Austrian army, was crossing the River Neisse, on the march, by a route thirty miles west of his encampment, to take Breslau by surprise. But he had already adopted effectual measures to thwart their plans.THE ASSAULT ON GLOGAU.In reference to the course which the king had allowed himself to pursue in obtaining access to the archives of Saxony by bribing an officer to betray his trust, Augustus William wrote:Yesterday noon, said he, I had Prince Charles in my parlor. His adjutants and people were all crowding about. Such a questioning and bothering. Hundreds came dashing in, and other hundreds were sent out. In and out they went all night. No sooner was one gone than ten came. I had to keep a roaring fire in the kitchen all night, so many officers were crowding to it to warm themselves. They talked and babbled. One would say that our king was marching upon them with his Potsdam parade guard. Another would say, No, he dare not come. He will turn and run. But my delight is that our king has paid them for their fooleries so prettily this afternoon.