Spitamenes, meanwhile, assisted by the Massagetai, one of the Skythian tribes that ranged over the Khorasmian desert, made a devastating irruption into Baktria, and though he was in the end repulsed by Krateros, escaped into the desert beyond the reach of pursuit. Fearing he might renew his attack in some other quarter, Alexander hastened to Marakanda to settle the province and provide for its security against future hostile incursions. To this end he directed a number of new towns to be founded and planted with Macedonian, Greek, and native colonists. In the course of this expedition he came to the Royal Park at Bazaria (perhaps Bokhara), and while hunting within its precincts killed a lion of extraordinary size with his own hand. On his return to Marakanda a tragic incident occurred—his murder of Kleitos, from whom he had received some provocation in the course of a drunken revel. As he was tenderly attached to Kleitos, who was the brother of his nurse, and had saved his life at the Granîkos, his remorse for this frenzied deed knew no bounds at the time, and gave him many bitter moments in his after life. His next expedition led him towards the western frontier of the province, where he reduced the district called Xenippa, which lay on the skirts of the Noura mountains—a range that runs from east to west about ten miles north of Bokhara. As Spitamenes was supposed to be in the desert not far off, he left Koinos in that part of the country with orders to capture that audacious rebel, while he himself withdrew to Nautaka, where he intended to pass the winter. This place was situated in a fertile oasis between Samarkand and the Oxus, and must have occupied the site of Kurshee or Kesh, noted afterwards as the birthplace of Timour. Spitamenes, meanwhile, attacked Koinos, but was defeated after a severe struggle, and driven back into the desert. His Skythian confederates, fearing their own country might be invaded, cut off his head and sent it to Alexander; and so perished the most active, bold, and persevering antagonist that he had as yet encountered in Asia, one of the few who resolutely and to the last scorned to bend his neck to a foreign yoke.