It was now, however, too late for the Thebans to repent of what they had done. They were far too deeply impressed with a conviction of the decision and energy of Alexander's character, as manifested in the whole course of his proceedings since he began to reign, and especially by his sudden reappearance among them so soon after this outbreak against his authority, to imagine that there was now any hope for them except in determined and successful resistance. They shut themselves up, therefore, in their city, and prepared to defend themselves to the last extremity.