This point he reached on the 21st of May, 1781. The weather was extremely hot, and for miles the troopers and their horses had been unable to find a drop of water: consequently neither the men nor the animals were in a condition to make the attack when the command was brought to a halt under the pines that skirted the field surrounding the fort. The British within the fort were resting quietly, and were not aware that an enemy was at hand. A prompt and decisive movement was necessary; and when his men and horses had rested a little while, Lee dismounted the militiamen he had brought with him, and ordered them to make a demonstration against the fort on the side opposite the position he had taken. This famous commander reasoned, that, as soon as the militiamen appeared before the fort, the garrison would sally from the stockade. The militia would retreat, the garrison pursuing, and he would seize upon that moment to assault and capture the post left defenseless. To carry out this plan, Captain Rudolph (who was supposed to be some great general in disguise), with a detachment of picked infantry, was held in readiness to rush upon the fort; while the rest of the troops, supported by the dragoons, were placed where they could shield the militia from the pursuit of the British.
The affair took place just as Lee had foreseen. The garrison sallied out to the attack. The militia, before making a show of resistance, began a retreat. The garrison gave pursuit. Captain Rudolph dashed across the field, and captured the fort without any trouble, The end came, when the militia rallied, and the foot soldiers and dragoons closed around the soldiers of the garrison. During the engagement the Americans lost one man from sunstroke. The enemy lost only three or four men. The rest, together with the valuable stores in the stockade, fell into the hands of the patriots.
Following this successful affair, which was of more importance than it seems now to be, Lee formed a junction with General Pickens; and these two then joined their forces with those of Clarke, who commanded the Georgia militia, and the siege of Augusta began. The first movement was the capture of Fort Grierson, so called in honor of the man who commanded its garrison. Grierson, hard pressed, threw open the gates of the fort, and endeavored to escape. Thirty of his men were killed, and forty-five wounded and captured. Grierson was made a prisoner, but was killed by a Georgia rifleman. He was as cruel and vindictive as Brown himself. He was a monster who had made himself odious to the followers of Clarke. In his history, Captain McCall strongly hints that Grierson was shot by one of the sons of the aged Mr. Alexander, who had been made prisoner and dragged to Augusta tied to the tail of a cart. A reward was offered for information that would lead to the arrest of the man who shot Grierson, but the reward was never claimed. The whole army probably knew who had fired the fatal shot, and no doubt the commanders knew, but their knowledge was not official. No further notice was taken of the matter.