The attack was speedily commenced, and the walls were assailed with all the then-known instruments of war. Day and night, without a moment's intermission, the besiegers, like incarnate fiends, plied their works. The Tartars, as ever, were victorious, and Kief, with all its thronging population and all its treasures of wealth, architecture and art, sank in an abyss of flame and blood. It sank to rise no more. Though it has since been partially rebuilt, this ancient capital of the grand princes of Russia, even now presents but the shadow of its pristine splendor. Onward, still onward, was the cry of the barbarians. Leaving smoking brands and half-burnt corpses where the imperial city once stood, the insatiable Bati pressed on hundreds of miles further west, assailing, storming, destroying the provinces of Gallicia as far as southern Vladimir within a few leagues of the frontiers of Poland. Russia being thus entirely devastated and at the feet of the conquerors, Bati wheeled his army around toward the south and descended into Hungary. Novgorod was almost the only important city in Russia which escaped the ravages of this terrible foe. Bati continued his career of conquest, and, in 1245, was almost undisputed master of Russia, of many of the Polish provinces, of Hungary, Croatia, Servia, Bulgaria on the Danube, Moldavia and Wallachia. He then returned to the Volga and established himself there as permanent monarch over all these subjugated realms. No one dared to resist him. Bati sent a haughty message to the Grand Prince Yaroslaf at northern Vladimir, ordering him to come to his camp on the distant Volga. Yaroslaf, in the position in which he found himself--Russia being exhausted, depopulated, covered with ruins and with graves--did not dare disobey. Accompanied by several of his nobles, he took the weary journey, and humbly presented himself in the tent of the conqueror. Bati compelled the humiliated prince to send his young son, Constantin, to Tartary, to the palace of the grand khan Octai, who was about to celebrate, with his chiefs, the brilliant conquests his army had made in China and Europe. If the statements of the annalists of those days may be credited, so sumptuous a fete the world had never seen before. The guests, assembled in the metropolis of the khan, were innumerable. Yaroslaf was compelled to promise allegiance to the Tartar chieftain, and all the other Russian princes, who had survived the general slaughter, were also forced to pay homage and tribute to Bati.