Nevertheless, after a little while Aristomachus was killed by slaves, and Aristippus, a more pernicious tyrant than he, soon succeeded in seizing the power. Aratus at once took all the Achaeans of military age who were at hand and went swiftly to the aid of the city, supposing that he would be welcomed by the Argives. But since most of them were by this time habituated to slavery and willing to endure it, so that not a man came over to his side, he retired, after involving the Achaeans in the charge of having gone to war in time of peace. They were prosecuted on this charge before the Mantineans, and in the absence of Aratus, Aristippus as plaintiff won his case and was awarded damages to the amount of thirty minas. Half a talent, equivalent to about £118 or $600, a merely nominal fine. Mantineia acted as arbitrator,perhaps by special agreement.