He then advanced against Sambos, whom he had appointed satrap of the Indian mountaineers, and who was reported to have fled on hearing that Mousikanos had been pardoned by Alexander, and was ruling his own land, for he and Mousikanos were on hostile terms. But when Alexander approached the city called Sindimana,[178] which formed the metropolis of the country of Sambos, the gates were thrown open on his arrival, and the members of the household of Sambos with his treasure (of which they had reckoned up the amount) and his elephants went forth to meet him. Sambos, these men informed him, had fled, not from hostility to Alexander, but from fears to which the pardon of Mousikanos had given rise. He captured besides another city,[179] which had at this time revolted, and he put to death all those Brachmans who had instigated the revolt. These Brachmans are the philosophers of the Indians, and of their philosophy, if so it may be called, I shall give an account in my work which describes India. _Chapter XVII.—Mousikanos is captured by Peithôn and executed—Alexander reaches Patala at the apex of the Indus Delta_ Meantime he received word that Mousikanos had revolted. Thereupon he despatched the satrap Peithôn, the son of Agênor, against him with an adequate force, while he marched himself against the cities which had been placed under the rule of Mousikanos. Some of these he razed to the ground after reducing the inhabitants to slavery; into others he introduced garrisons and fortified their citadels. When these operations were finished he returned to the camp and the fleet—whither Mousikanos was conducted, who had been taken prisoner by Peithôn. Alexander ordered the rebel to be taken to his own country and hanged there, together with all those Brachmans who had instigated him to revolt. Then there came to him the ruler of the country of the Patalians, which, as I have stated, consists of the Delta formed by the river Indus, and is larger than the Egyptian Delta. This chief surrendered to him the whole of his land, and entrusted both himself and all his possessions to him. Alexander sent him back to his government with orders to make all due preparations for the reception of his expedition. He then sent away Krateros into Karmania by the route through the Arachôtians and the Sarangians,[180] leading the brigades of Attalos, Meleager, and Antigenês, along with some of the archers and such of the companions and other Macedonians as he was sending home to Macedonia as unfit for further service. He also sent away the elephants with him. The rest of the army, except that portion which with himself was sailing down to the sea, was placed under the command of Hêphaistiôn. Peithôn, who led the horse-lancers and the Agrianians, he transported to the opposite bank so that he might not be on that side of the river by which Hêphaistiôn was to advance. Peithôn was instructed to put colonists into the cities which had just been fortified, to suppress