Early on Friday morning the Prince's army broke up from their camp at Duddingstone. Charles himself was the first man on the field. As the troops began their march, he drew his sword and cried: 'Gentlemen, I have thrown away the scabbard;' high-spirited words which found an echo in the hearts of all the brave men present.
The army marched in column, three abreast, the various clans holding together under their own chiefs. Two miles short of Prestonpans Lord George learned the position of Cope's army, and at once led his light-footed soldiers up the slopes that commanded the plain. The English general was hourly expecting to see his enemies approach from the west by the road, and he was fully prepared to meet them at that point. At two in the afternoon, to his amazement, they suddenly appeared from the south, marching over the ridge of the hill.
The Hanoverian soldiers had enough spirit to receive them with cheers, to which the Highlanders responded by wild yells. They longed ardently to sweep down the slope and give instant battle, but the nature of the ground made this impossible even to a Highland army. Intersecting the hillside were high stone walls, which would have to be scaled under a hot fire from below, and at the bottom was a swamp, a wide ditch, and a high hedge. A certain gentleman in the Prince's army—Mr. Ker of Gordon—rode over the ground on his pony to examine its possibilities. He went to work as coolly as if he were on the hunting-field, making breaches in the wall and leading his pony through, in spite of a dropping fire from the Hanoverians. He reported that to charge over such ground was impossible. The Highlanders were bitterly disappointed; their one fear was that Cope should again slip away under cover of darkness. To prevent this Lord Nairne and 600 Perthshire men were sent to guard the road to Edinburgh. Seeing that nothing more could be done that night, both armies settled down to rest; General Cope lay in comfort at Cockenzie, Prince Charles on the field; a bundle of peastraw served for his pillow; a long white cloak thrown over his plaid for a covering.
Among the volunteers who had recently joined the Prince was an East Lothian laird called Anderson. He had often shot over the fields about Prestonpans. During the night he suddenly remembered a path which led from the heights, down through the morass on to the plain, slightly to the east of Cope's army. He sought out Lord George and told him of this path, and he, struck with the possibility of making immediate use of the information, took him without delay to the Prince. Charles was alert on the instant, entered into the plan proposed, and the next moment the word of command was passed along the sleeping lines. A few moments later the whole army was moving along the ridge in the dim starlight. But here a difficulty occurred. At Bannockburn, and in all great battles afterwards, except Killiekrankie, the Macdonalds had held the place of honour on the right wing of the army. They claimed that position now with haughty tenacity. The other clans, equally brave and equally proud, disputed the claim. It was decided to draw lots to settle the question. Lots were drawn, and the place of honour fell to the Camerons and Stewarts. An ominous cloud gathered on the brows of the Macdonald chiefs, but Locheil, as sagacious as he was courteous, induced the other chiefs to waive their right, and, well content, the clan Macdonald marched on in the van.
Up on the hill the sky was clear, but a thick white mist covered the plain. Under cover of this the Highlanders passed the morass in the one fordable place. In the darkness the Prince missed a stepping-stone and slipped into the bog, but recovered so quickly that no one had time to draw a bad omen from the accident. A Hanoverian dragoon, standing sentinel near this point, heard the march of the soldiers while they were still invisible in the dusk, and galloped off to give the alarm, but not before the Highland army was free from the swamp and had formed in two lines on the plain. Macdonalds and Camerons and Stewarts were in the first line; behind, at a distance of fifty yards, the Perthshiremen and other regiments led by Charles himself.
Learning that the enemy was now approaching from the east side of the plain, Cope drew up his men to face their approach. In the centre was the infantry—the steadiest body in his army—on his left, near the sea and opposite the Macdonalds, Hamilton's dragoons, on the right, the other dragoons under Gardiner, and in front of these the battery of six cannon. This should have been a formidable weapon against the Highlanders, who, unfamiliar with artillery, had an almost superstitious fear of the big guns, but they were merely manned by half-a-dozen feeble old sailors. There was a brief pause as the two armies stood opposite each other in the sea of mist. The Highlanders muttered a short prayer, drew their bonnets down on their eyes, and moved forward at a smart pace. At that moment a wind rose from the sea and rolled away the curtain of mist from between the two armies. In front of them the Highlanders saw their enemy drawn up like a hedge of steel. With wild yells they came on, their march quickening to a run, each clan charging in a close compact body headed by its own chief. Even while they rushed on, as resistless as a torrent, each man fired his musket deliberately and with deadly aim, then flung it away and swept on, brandishing his broadsword. A body of Stewarts and Camerons actually stormed the battery, rushing straight on the muzzles of the guns. The old men who had them in charge had fled at the first sight of the Highlanders; even the brave Colonel Whiteford, who alone and unassisted stood to his guns, had to yield to their furious onset. Gardiner's dragoons standing behind the battery were next seized by the panic; they made one miserable attempt to advance, halted, and then wheeling round, dashed wildly in every direction. Nor could Hamilton's dragoons on the other wing stand the heavy rolling fire of the advancing Macdonalds. Mad with terror, man and horse fled in blind confusion, some backwards, confounding their own ranks, some along the shore, some actually through the ranks of the enemy.
James More wounded at Prestonpans
Only the infantry in the centre stood firm and received the onset of the Highlanders with a steady fire. A small band of Macgregors, armed only with scytheblades, charged against this hedge of musketry. This curious weapon was invented by James More, a son of Rob Roy Macgregor. He was the leader of this party, and fell, pierced by five bullets. With undaunted courage he raised himself on his elbow, and shouted, 'Look ye, my lads, I'm not dead; by Heaven I shall see if any of you does not do his duty.' In that wild charge, none of the clansmen failed to 'do his duty.' Heedless of the rain of bullets, they rushed to close quarters with the Hanoverian infantry, who, deserted by the dragoons, were now attacked on both sides as well as in front. A few stood firm, and the gallant Colonel Gardiner put himself at their head. A blow from a scytheblade in the hands of a gigantic Macgregor ended his life, and spared him the shame and sorrow of another defeat. The Park walls at their back prevented the infantry from seeking ignoble security in flight, after the fashion of the dragoons, and they were forced to lay down their weapons and beg for quarter. Some 400 of them fell, struck down by the broadswords and dirks of their enemy, more than 700 were taken prisoners, and only a few hundreds escaped.