From this point he despatched Colonel Purdy with about 1,500 men, composed of a light brigade (the 1st Brigade of the American Army[25]) and a strong body of the infantry of the line, at an early hour in the night of the 25th, across the Châteauguay and down its right bank[26] at a bend adjoining what is now known as the Cross Farm, with orders to gain the ford and fall on the rear of Lieut.-Colonel De Salaberry's position, while the main body, under General Izard, were to commence the attack in front. Purdy's brigade crossed not far above De Salaberry, and proceeded into the woods of the opposite side. A cedar swamp, an unexpected stream in which they floundered, and the ignorance of their guides misled and bewildered them. This was the fault of Hampton, and due to his headstrongness, for the guides had protested that they did not know that side of the Châteauguay; but he had ordered them to proceed. Purdy's command became scattered, were forced to halt in confusion, and had to sleep in the open woods, cold, wet, exhausted, and apprehensive.[27] General Hampton, however, in the morning, fully expected to hear them attacking the ford, advanced, and at ten o'clock his troops appeared in sight of the party of busy woodchoppers, about 3,500 men, with three squadrons of cavalry, marching in column along the high road, commanded by General Izard. Lieut. Guy's picket fired, the workmen dropped work and ran, Guy retired upon Johnson, and both Lieutenants retreated with their men to the completed abattis, where they formed up again and began to fire smartly.