On the 21st of May, the whole force was put in motion, and after a march of nine days, met the Tartar army on the banks of the river Kalets. The waving banners and the steeds of the Tartar host, covering the plains as far as the eye could extend, in numbers apparently countless, presented an appalling spectacle. Many of the Russian leaders were quite in despair; others, young, ardent, inexperienced, were eager for the fight. The battle immediately commenced, and the combatants fought with all the ferocity which human energies could engender. But the Russians were, in the end, routed entirely. The Tartars drove the bleeding fugitives in wild confusion before them back to the Dnieper. Never before had Russia encountered so frightful a disaster. The whole army was destroyed. Not one tenth of their number escaped that field of massacre. Seven princes, and seventy of the most illustrious nobles were among the slain. The Tartars followed up their victory with their accustomed inhumanity, and, as if it were their intention to depopulate the country, swept it in all directions, putting the inhabitants indiscriminately to the sword. They acted upon the maxim which they ever proclaimed, "The conquered can never be the friends of the conquerors; and the death of the one is essential to the safety of the other." The whole of southern Russia trembled with terror; and men, women and children, in utter helplessness, with groans and cries fled to the churches, imploring the protection of God. That divine power which alone could aid them, interposed in their behalf. For some unknown reason, Genghis Khan recalled his troops to the shores of the Caspian, where this blood-stained conqueror, in the midst of his invincible armies, dictated laws to the vast regions he had subjected to his will. This frightful storm having left utter desolation behind it, passed away as rapidly as it had approached. Scathed as by the lightnings of heaven, the whole of southern Russia east of the Dnieper was left smoking like a furnace.