After the battle of Quinby the joint forces of Sumter and Marion were separated. The former retired up the Congaree; the latter took charge of the country on the Santee; while Greene placed himself in a camp of rest at the High Hills in the district which has since taken the name of Sumter. His troops were in a wretched state of incapacity, in consequence of sickness. The region to which he retired was famous for its salubrity, and the intense heat of the season effectually forbade much military activity. The opposing generals were content to watch each other. It was while he held this position that Col. Hayne, of the militia, was executed as a traitor by the British. The case of this gentleman was that of many in the State. He had taken parole at a time when the country was overrun by the enemy. This parole was subsequently withdrawn by the conquerors, when they supposed the people to have been subdued, and desired their services as militia. But the British were in turn driven from the field. The Americans acquired the ascendant. The section of the country in which Hayne resided was overrun by a detachment of Marion, under Col. Harden, and Hayne availed himself of the occasion to take up arms for his country. He was a popular gentleman, and soon gathered a strong party of militia. His career was distinguished by some small successes, and, with a party of Col. Harden's horse, by a sudden dash in the vicinity of Charleston, he succeeded in taking prisoner General Williamson, formerly of the Americans, whose life was forfeited to the country. The capture of Williamson put all the available cavalry of the British into activity, and by an unfortunate indiscretion, Hayne suffered himself to be overtaken. His execution soon followed his capture. This was a proceeding equally barbarous and unjustifiable—neither sanctioned by policy nor propriety. It took place after a brief examination, and without any trial. The proceeding was equally unauthorized by civil and martial law. It was not long before this, as the reader will remember, that Marion, in consequence of the execution of some of his men by the British, had threatened them with retaliation. Greene, who knew the decisive character of Marion, and was apprehensive that this wanton crime would render him as prompt as he was fearless, in avenging it, thus writes to prevent him: "Do not take any measures in the matter towards retaliation, for I do not intend to retaliate upon the TORY officers, but the BRITISH. It is my intention to demand the reasons of the Colonel's being put to death; and if they are unsatisfactory, as I am sure they will be, and if they refuse to make satisfaction, as I expect they will, to publish my intention of giving no quarter to British officers, of any rank, that fall into our hands. Should we attempt to retaliate upon their militia officers, I am sure they would persevere in the measure, in order to increase the animosity between the Whigs and Tories, that they might stand idle spectators, and see them butcher each other. As I do not wish my intentions known to the enemy but through an official channel, and as this WILL BE DELAYED FOR SOME FEW DAYS TO GIVE OUR FRIENDS IN ST. AUGUSTINE TIME TO GET OFF, I wish you not to mention the matter to any mortal out of your family."

Weems represents Marion as being greatly averse to this measure of retaliation, and as having censured those officers of the regular army who demanded of Greene the adoption of this remedy. But the biographer wrote rather from his own benevolent nature than from the record. Marion had no scruples about the necessity of such a measure in particular cases; and, however much he might wish to avoid its execution, he was yet fully prepared to adopt it whenever the policy of the proceeding was unquestionable. Fortunately, the decisive resolutions which were expressed by the Americans, their increasing successes, the fact that they had several British officers of reputation in their hands,—all conspired to produce, in the minds of the enemy, a greater regard to the rights of justice and humanity. As retaliation in such cases is justifiable only as a preventive and remedial measure, it now ceased to be necessary; and, with proper views of the affair, the resolves of Greene and Marion were suffered to remain unexpunged, in proof of their indignation, rather than their purpose. But a few days had elapsed after the execution of Hayne when a party of Marion's men, under Captain Ervine, fell in with and captured a favorite British officer, Captain Campbell, with two subalterns, in charge of a convoying detachment. They were at once committed to the provost guard, and soon communicated their apprehensions to Charleston. A meeting of British officers was held, and their dissatisfaction at this new feature, introduced into the warfare of the country, was expressed in such terms, as contributed, along with the prompt proceedings of the Americans, to bring Balfour, the commandant of Charleston, under whose authority the execution of Hayne had taken place, to a better sense of mercy and prudence. We shall have no farther occasion to refer to these proceedings. It is enough that the threat of retaliation, followed up by such decided movements as left no doubt of the resolution of the Americans, produced all the beneficial effects which could have accrued from its execution.

The incursion of Sumter and Marion into the low country, drew Lord Rawdon from Orangeburg, with five hundred men, to Charleston, from which place, after lingering just long enough to witness the death of Hayne, he sailed for New York. He left Lieut.-Col. Stewart in command at Orangeburg. From this post, Stewart moved to McCord's ferry, on the Congaree, on the south side of which he took post, amidst the hills near the confluence of the Wateree and Congaree. Greene's camp lay directly opposite, and the fires of the mutual armies were distinctly seen by each other. The heat of the weather suspended all regular military operations. Two large rivers intervening secured each from sudden attack, and their toils were confined to operating in small detachments, for foraging or convoy. In this service, on the American side, Col. Washington was detached—as soon as the course of Stewart was ascertained—down the country across the Santee; Lee was sent upward, along the north bank of the Congaree; the latter to operate with Col. Henderson, then in command of Sumter's brigade, at Fridig's ferry, and the former to strike at the communication between the enemy and Charleston, and to cooperate with Marion and Mayham, in covering the lower Santee. Col. Harden, at the same time, with a body of mounted militia, had it in charge to straiten the enemy upon the Edisto.

The activity of these several parties and their frequent successes, were such that Stewart was compelled to look for his supplies to the country below him. This necessity caused him to re-establish and strengthen the post at Dorchester, in order to cover the communication by Orangeburg; and to place a force at Fairlawn, near the head of the navigation of Cooper river, from which supplies from Charleston were transported to headquarters over land. As this route was watched by Marion, Washington and Mayham, the British commander was compelled, in order to secure the means of communication with the opposite bank of the Congaree and to draw supplies from thence, to transport boats adapted to the purpose, on wagon-wheels, from Fairlawn to the Congaree.

Such were the relative positions of the two armies until the 22d of August, when Greene, calling in all his detachments except those under Marion, Mayham and Harden, broke up his camp at the High Hills and proceeded to Howell's ferry, on the Congaree, with the intention immediately to cross it and advance upon Stewart. That officer, on hearing of the movement of the Americans, fell back upon his reinforcements and convoys, and took up a strong position at the Eutaw Springs.

Meanwhile, Marion disappeared from the Santee on one of those secret expeditions in which his wonderful celerity and adroit management conducted his men so frequently to success. His present aim was the Pon-Pon. Col. Harden was at this time in that quarter, and closely pressed by a superior British force of five hundred men. Detaching a party of mounted militia to the neighborhood of Dorchester and Monk's Corner, as much to divert the enemy from his own movements as with any other object, he proceeded with two hundred picked men on his secret expedition.

By a forced march, he crossed the country from St. Stephen's to the Edisto—passing through both lines of the enemy's communication with Charleston, and reached Harden—a distance of one hundred miles—in season for his relief. His approach and arrival were totally unsuspected by the enemy, for whom he prepared an ambush in a swamp near Parker's ferry. A small body of his swiftest horse were sent out to decoy the British into the snare. A white feather, rather too conspicuously worn by one of his men in ambush, had nearly defeated his design. Some Tories passing, discovered this unnecessary plumage, and one of them fired upon the wearer. This led to an exchange of shots; but Major Frazier, by whom the British were commanded, assuming the party thus concealed to be that of Harden, whom it was his aim to find, pursued the horsemen whom Marion had sent out to entice him to the ambuscade. His cavalry was led at full charge within forty yards of the concealed riflemen. A deadly fire was poured in, under which the British recoiled; attempting to wheel and charge the swamp, they received a second; and, closely wedged as their men were upon the narrow causeway over which they came, every shot bore its warrant. There was no retreating, no penetrating the ambush, and the British cavalry had but to go forward, along the road to the ferry, thus passing the entire line of the ambuscade. The corps was most effectually thinned by the time it got beyond rifle reach; and still more fatal would have been the affray to the advancing infantry of Frazier—a large body, with a field-piece—but for one of those lamentable deficiencies of materiel, which so frequently plucked complete success from the grasp of the Americans. The ammunition of our partisan failed him, and he was compelled to yield the ground to the enemy, who was otherwise wholly in his power. The British loss was unknown. Twenty-seven dead horses were counted on the field the day after; the men had all been buried. As Marion's men fired with either a ball or heavy buck-shot, and as none would aim at horses, the loss of the British must have been very great. Nine days after, at the battle of Eutaw, they had few cavalry in the field.

But, though the victory was incomplete, Marion had attained his object. He had rescued Harden, without loss to himself. He had traversed more than two hundred miles of country, through a region held by the enemy; returned by the same route,—delivered his prisoners to the care of Mayham,—returned twenty miles below the Eutaw, in order to watch the communication between that place and Fairlawn—then, at the call of Greene, made a circuit and passed the British army, so as to reach a position on the south side of the Santee, in the track of Greene's advance; and all this in the brief compass of six days. Yet, of these movements, which merited and received the particular thanks of Congress, we are without any data in our records. The complimentary resolution of Congress fixes the battle at Parker's ferry on the 31st August.

Seventeen miles from Eutaw Springs, at Lauren's plantation, Marion effected a junction with the commander-in-chief. Greene was pressing forward to a meeting with Stewart. Of this object the latter seemed to have been profoundly ignorant up to this moment. But the day before, he knew that Marion was twenty miles below him, and did not conjecture that, by marching the whole night, he had thrown himself above him to join with Greene. Without this junction he had no apprehension that the latter, with an inferior force, would venture an attack upon him, in the strong position which he held. On the afternoon of the 7th September, the army reached Burdell's tavern on the Congaree road, seven miles from the Eutaws. The force under Greene amounted to two thousand men, all told. That under General Stewart was probably about the same. It is estimated to have been two thousand three hundred. These were all disciplined troops, and a large proportion of the old regiments consisted of native marksmen from the ranks of the loyalists. In cavalry, Greene had the advantage, but a great portion of his men were militia. In artillery the two armies were equal. The British had five and the Americans four pieces.

The memorable battle of the Eutaw Springs was fought on the 8th September. At four o'clock in the morning the Americans moved from their bivouac down to the attack. The day was fair, but intensely hot; but the combatants at the commencement of the battle were relieved by the shade of the woods. The South Carolina State troops and Lee's legion formed the advance under Colonel Henderson. The militia, both of South and North Carolina, moved next, under Marion. Then followed the regulars under Gen. Sumner; and the rear was closed by Washington's cavalry, and Kirkwood's Delawares, under Col. Washington. The artillery moved between the columns. The troops were thus arranged in reference to their order of battle.