Meanwhile Yermak had continued to advance into the valley of the Obi beyond its confluence with the Irtysch; and when at length his force was augmented by the arrival of 500 Russians, he pursued his expeditions with increasing audacity. On his return from one of these forays, he encamped on a small island in the Irtysch. The night was dark and rainy, and the Russians, fatigued by their march, relied too much upon the badness of the weather or the terror of their name. But Kutchum Khan, having been informed by his spies of their want of vigilance, crossed a ford in the river, and falling upon the unsuspecting Russians, killed them all except one single soldier, who brought the fatal intelligence to Sibir. Yermak, when he saw his warriors fall around him like grass before the scythe, without losing his presence of mind for a moment, cut his way through the Tartars, and endeavored to save himself in a boat. But in the medley he fell into the water and was drowned. By the orders of Kutchum, the body of the hero was exposed to every indignity which the rage of a barbarian can think of; but after this first explosion of impotent fury, his followers, feeling ashamed of the ignoble conduct of their chief, buried his remains with princely pomp, and ascribed miraculous powers to the grave in which they were deposited. The Russians have also erected a monument to Yermak in the town of Tobolsk, which was built on the very spot where he gained his first decisive victory over Kutchum. It is inscribed with the dates of that memorable event, and of the unfortunate day when he found his death in the floods of the Irtysch. His real monument, however, is all Siberia from the Ural to the Pacific; for as long as the Russian nation continues to exist, it will remember the name of Yermak Timodajeff. The value of the man became at once apparent after his death, for scarcely had the news of the disaster arrived, when the Russians immediately evacuated Sibir, and left the country. But they well knew that this retreat was to be but temporary, and that the present ebb of their fortunes would soon be followed by a fresh tide of success. After a few years they once more returned, as the definitive masters of the country. Their first settlement was Tjumen, on the Tara, and before the end of 1587 Tobolsk was founded. They had, indeed, still many a conflict with the Woguls and Tartars, but every effort of the natives to shake off the yoke proved fruitless. As gold had been the all-powerful magnet which led the Spaniards from Hispaniola to Mexico and Peru, so a small fur-bearing animal (the sable) attracted the Cossacks farther and farther to the east; and although the possession of fire-arms gave them an immense advantage over the wild inhabitants of Siberia, yet it is as astonishing with what trifling means they subdued whole nations, and perhaps history affords no other example of such a vast extent of territory having been conquered by so small a number of adventurers.