At the last moment, hearing that Crook was strengthening his entrenchments, Early so far changed his plan as to part company with Wharton at Strasburg, and then, bearing off to the right, to conduct Kershaw to the banks of Cedar Creek at the ford that now bears the name of Roberts. This is about twelve hundred yards above the mouth of the creek; and there, at half-past three in the morning, in the long shadows of the full moon,(4) Early stood with Kershaw at his back and the sleeping ranks of Thoburn directly in his front, and waited only for the appointed hour. At half-past four, Early again set Kershaw in motion. The crossing of Cedar Creek was unobserved and unopposed. Once on the north bank, Kershaw deployed to the right and left, and stood to arms listening for Gordon. Wharton, who had already formed under cover of the tress, on the edge of Hupp's Hill, crept down the slope to the front of the wood, and there, likewise in shadow, hardly a thousand feet from the bridge and the middle ford, he too watched for the signal. To crown all, as the dawn drew near a light fog descended upon the river bottom and covered all objects as with a veil. Almost from the beginning it had been the custom of the Nineteenth Army Corps, at all times when in the presence of the enemy, to stand to arms at daybreak. Moreover as Molineux was to go out on a reconnoissance by half-past five, his men had breakfasted and were lying on their arms waiting for the order to march. Birge and Macauley were to be ready to follow in support after a proper interval, and Shunk was to cover the front of all three during their absence. McMillan had also been notified to support the movement of Grover's brigades. Emory himself was up and dressed, the horses of his staff were saddled, and his own horses were being saddled, when from the left a startling sound broke the stillness of the morning air. This was the roar of the one tremendous volley by which Kershaw made known his presence before the sleeping camp of Thoburn. In an instant, before a single shot could be fired in return, before the muskets could be taken from the stacks, before the cannoneers could reach their pieces, Kershaw's men, with loud and continuous yells, swarmed over the parapet in Thoburn's front, seized the guns, and sent his half-clad soldiers flying to the rear. Thus Kershaw, who a moment before had been without artillery, suddenly found himself in possession of the seven guns that had been planted to secure Thoburn's ground. Then upon Emory and upon Hayes, as well as against the flying fugitives, he turned the cannon thus snatched from their own comrades.