This plan being approved by a council of war, preparations were made for its immediate execution. As soon as it was dark, the baggage was removed silently to Burlington; and, about one in the morning, after renewing their fires, and leaving their guards to go the rounds as usual; the army decamped with perfect silence, and took a circuitous route along the Quaker road to Princeton, where three British regiments had encamped the preceding night, two of which commenced their march early in the morning to join the rear of their army at Maidenhead. At sunrise, when they had proceeded about two miles, they saw the Americans on their left, advancing in a direction which would enter the road in their rear. They immediately faced about, and, repassing Stony Brook, moved under cover of a copse of wood towards the American van, which was conducted by General Mercer. A sharp action ensued, which, however, was not of long duration. The militia, of which the advanced party was principally composed, soon gave way; and the few regulars attached to them were not strong enough to maintain their ground. While exerting himself gallantly to rally his broken troops, General Mercer was mortally wounded, and the van was entirely routed. But the fortune of the day was soon changed. The main body, led by General Washington in person, followed close in the rear, and attacked the British with great spirit. Persuaded that defeat would irretrievably ruin the affairs of America, he advanced in the very front of danger, and exposed himself to the hottest fire of the enemy. He was so well supported by the same troops who, a few days before, had saved their country at Trenton, that the British, in turn, were compelled to give way. Their line was broken, and the two regiments separated from each other. Colonel Mawhood, who commanded that in front, and was, consequently, nearest the rear division of the army, under Lord Cornwallis, retired to the main road, and continued his march to Maidenhead. The fifty-fifth regiment, which was on the left, being hard pressed, fled in confusion across the fields into a back road, leading between Hillsborough and Kingston towards Brunswick. The vicinity of the British forces at Maidenhead secured Colonel Mawhood, and General Washington pressed forward to Princeton. The regiment remaining in that place took post in the college, and made a show of resistance; but some pieces of artillery being brought up to play upon that building, it was abandoned, and the greater part of them became prisoners. A few saved themselves by a precipitate flight to Brunswick.