On his return to Lesbos, Paches despatched to Athens the prisoners who had been sent to Tenedos, among whom was the Spartan Salaethus. When they arrived the Athenians immediately put Salaethus to death, and then met in full assembly to decide on the fate of the rest. They had just been delivered from a fearful danger, and in the natural reaction of vindictive rage which had now set in they came to the horrible resolution of putting all the adult male population of Mytilene to the sword, and selling the women and children as slaves. The Mytilenaeans, they argued, were without excuse: they were not subjects of Athens, who might wish to escape from their burdens, but free and privileged allies. They had treacherously plotted against Athens, when she was sunk deep in calamity, and brought a Peloponnesian fleet within the sacred circle of her empire. For a long time past they had evidently been hatching a vile conspiracy against the very existence of Athens. Having once come to this decision, the Athenians lost no time, but sent off a trireme on the same day, with orders to Paches to carry the decree into effect. But after a night of cool reflection they began to repent of their haste. It was a cruel and monstrous thing, they now thought, to butcher the population of a whole city, innocent and guilty alike. The Mytilenaean envoys, who had been sent to Athens on the surrender of the city, perceived that there was a change in the public temper, and acting in concert with influential Athenians who were in their interest, they induced the magistrates to summon a second assembly, and re-open the debate. It is on this occasion that we first catch sight [Footnote: That is, in the narrative of Thucydides.] of the notorious demagogue Cleon, who for the next six years will be the most prominent figure in Athenian public life. This man belongs to a class of politicians who had begun to exercise great influence on the affairs of Athens after the death of Pericles. That great statesman had really led the people, checking their excesses, setting bounds to their ambition, and guiding all the moods of the stormy democracy. But the demagogues were lowborn upstarts, who, while seeming to lead the people, really followed it, and kept their position by pandering to the worst passions of the multitude. It must, however, be mentioned that the two contemporary writers from whom we draw our materials for the portrait of Cleon, the historian Thucydides and the comic poet Aristophanes, were both violently prejudiced against him. Aristophanes hated him as the representative of the new democracy, which was an object of abhorrence to the great comic genius; and Thucydides, a born aristocrat, of strong oligarchical sympathies, looked with cold scorn and aversion on the coarse mechanic, [Footnote: Cleon was a tanner by trade.] who presumed to usurp the place, and ape the style, of a true leader like Pericles.