and slain. Upon their failure to return, Yermak left the city to investigate, eventually finding that Mahmet-kul had recovered from their earlier battle and was responsible for the Cossacks’ murder. Yermak then entered into battle with Mahmet-kul and his forces, defeating him once again. The defeat of Mahmet-kul provided a brief respite to the Cossacks. However, in April 1583, he returned to the region. In an unfortunate twist of fate, Mahmet-kul was quickly ambushed and captured by a small party of Cossacks, whose numbers ranged from as little as 10 to as many as 50. A few days after his capture, Mahmet-kul sent a messenger to Kuchum stating that he was alive and in good health. He also requested that the Khan cease attacks on the Cossacks and those bringing tribute to Yermak. Yermak, taking advantage of this lull in hostilities, set out down the Irtysh and Ob to complete his subjugation of the local tribal princes. He soon encountered the Ostyak prince Demian, who had fortified himself in a fortress on the banks of the Irtysh with 2,000 loyal fighters. It is reported to have taken Yermak and his men considerable time to break through their defenses due to Demian's possession of a gilded idol. Yermak's forces eventually prevailed; however, upon entering the fort, no idol was found. After dispersing a group of priests and warriors by brandishing their firearms, Yermak determined to subdue the most influential Ostyak prince of the region, Samar, who had joined forces with eight other princes. Yermak, noting that Samar had failed to place guards around his encampment, launched a surprise attack, killing Samar and disbanding his forces. Yermak was then able to secure tribute from the eight other princes. After this conquest, he continued down the river, succeeding in capturing the key Ostyak town of Nazym. Yermak's friend, Ataman Nikita Pan, and several Cossacks lost their lives in the battle. Yermak then directed his forces down the river Ob, conquering several small forts. After reaching a point at which the river broadened to a point of three or four versts, Yermak halted the expedition and returned his forces to Qashliq. Upon returning to Qashliq, Yermak decided to inform the Stroganovs and the tsar of his conquests. While his reasons for this are unclear, experts believe that, in addition to wishing to clear his name of earlier misdeeds, Yermak also desperately needed supplies. To