History of the Peloponnesian War

In the end, after a great many seditious harangues and suspicions, they set to work in real earnest. The heavy infantry in Piraeus building the wall in Eetionia, among whom was Aristocrates, a colonel, with his own tribe, laid hands upon Alexicles, a general under the oligarchy and the devoted adherent of the cabal, and took him into a house and confined him there.

In this they were assisted by one Hermon, commander of the Peripoli in Munychia, and others, and above all had with them the great bulk of the heavy infantry.

As soon as the news reached the Four Hundred, who happened to be sitting in the council chamber, all except the disaffected wished at once to go to the posts where the arms were, and menaced Theramenes and his party. Theramenes defended himself, and said that he was ready immediately to go and help to rescue Alexicles; and taking with him one of the generals belonging to his party, went down to Piraeus, followed by Aristarchus and some young men of the cavalry.