Tennes, on his part, had done his best in the way of preparations for defence. He had collected a fleet of above a hundred ships--triremes and quinqueremes,[14340] the latter now heard of for the first time in Asiatic warfare. He had strengthened the fortifications of Sidon, surrounding the town with a triple ditch of great width and depth, and considerably raising the height of the walls.[14341] He had hired Greek mercenaries to the number of six thousand, raising thus the number in his service to ten thousand in all, had armed and drilled the most active and athletic of the citizens, and had collected vast stores of provisions, armour, and weapons. But the advance of the Persian monarch at the head of so large a force filled Tennes with dismay and despair. Successful resistance was, he thought, impossible; and with a selfishness and a cowardice that must ever make him rank among the most infamous of men, he resolved, if possible, to purchase his own pardon of the King by delivering to his vengeance the entire body of his fellow-countrymen. Accordingly, after handing over to him a hundred of the principal citizens, who were immediately transfixed with javelins, he concerted measures with Mentor for receiving the Persians within the walls. While the arrangements were proceeding, five hundred of the remaining citizens issued forth from one of the gates of the town, with boughs of supplication, as a deputation to implore the mercy of Ochus, but only to suffer the same fate as their fellow-townsmen. The Persians were then received within the walls; but the citizens, understanding what their fate was to be, resolved to anticipate it. They had already burnt their ships, to prevent any desertion. Now they shut themselves up, with their wives and children, in their houses, and applying the torch to their dwellings lighted up a general conflagration. More than forty thousand persons perished in the flames. Ochus sold the ruins at a high price to speculators, who calculated on reimbursing themselves by the treasures which they might dig out from among the ashes. As for Tennes, it is satisfactory to find that a just vengeance overtook him. The treachery which he had employed towards others was shown also to himself. Ochus, who had given him a solemn promise that he would spare his life, no sooner found that there was nothing more to be gained by letting him live, than he relentlessly put him to death.[14342]