Early in the fight a musket-ball slew Herkimer's horse, and shattered his own leg just below the knee; but the old hero, nothing daunted, and bating nothing of his coolness in the midst of the horrid struggle, had the saddle taken from his dead horse and placed at the foot of a great beech-tree where, taking his seat and lighting his pipe, he continued shouting his orders in a stentorian voice and directing the progress of the battle. Nature presently enhanced the lurid horror of the scene. The heat of the August morning had been intolerable, and black thunder-clouds, overhanging the deep ravine at the beginning of the action, had enveloped it in a darkness like that of night. Now the rain came pouring in torrents, while gusts of wind howled through the treetops, and sheets of lightning flashed in quick succession, with a continuous roar of thunder that drowned the noise of the fray. The wet rifles could no longer be fired, but hatchet, knife, and bayonet carried on the work of butchery, until, after more than five hundred men had been killed or wounded, the Indians gave way and fled in all directions, and the Tory soldiers, disconcerted, began to retreat up the western road, while Herkimer's little army, remaining in possession of the hard-won field, felt itself too weak to pursue them. [Sidenote: Retreat of Herkimer] [Sidenote: Colonel Willett's sortie] [Sidenote: First hoisting of the stars and stripes] At this moment, as the storm cleared away and long rays of sunshine began flickering through the wet leaves, the sound of the three signal-guns came booming through the air, and presently a sharp crackling of musketry was heard from the direction of Fort Stanwix. Startled by this ominous sound, the Tories made all possible haste to join their own army, while Herkimer's men, bearing their wounded on litters of green boughs, returned in sad procession to Oriskany. With their commander helpless and more than one third of their number slain or disabled, they were in no condition to engage in a fresh conflict, and unwillingly confessed that the garrison of Fort Stanwix must be left to do its part of the work alone. Upon the arrival of the messengers, Colonel Gansevoort had at once taken in the whole situation. He understood the mysterious firing in the forest, saw that Herkimer must have been prematurely attacked, and ordered his sortie instantly, to serve as a diversion. The sortie was a brilliant success. Sir John Johnson, with his Tories and Indians, was completely routed and driven across the river. Colonel Marinus Willett took possession of his camp, and held it while seven wagons were three times loaded with spoil and sent to be unloaded in the fort. Among all this spoil, together with abundance of food and drink, blankets and clothes, tools and ammunition, the victors captured five British standards, and all Johnson's papers, maps, and memoranda, containing full instructions for the projected campaign.