History of the Peloponnesian War

On their return accordingly they began to stone Thrasylus in the bed of the Charadrus, where they try all military causes before entering the city. Thrasylus fled to the altar, and so saved his life; his property however they confiscated.

After this arrived a thousand Athenian heavy infantry and three hundred horse, under the command of Laches and Nicostratus; whom the Argives, being nevertheless loth to break the truce with the Lacedaemonians, begged to depart, and refused to bring before the people, to whom they had a communication to make, until compelled to do so by the entreaties of the Mantineans and Eleans, who were still at Argos.

The Athenians, by the mouth of Alcibiades their ambassador there present, told the Argives and the allies that they had no right to make a truce at all without the consent of their fellow-confederates, and now that the Athenians had arrived so opportunely the war ought to be resumed.

These arguments proving successful with the allies, they immediately marched upon Orchomenos, all except the Argives, who, although they had consented like the rest, stayed behind at first, but eventually joined the others.