History of the Peloponnesian War

Wherefore the Mendaeans also became more bold, for they saw the resolute attitude of Brasidas, and also inferred it from the fact that he did not give up Scione. Moreover, the conspirators among them were few in number, and, once they had formed the design, from that moment showed no slackness, but were in fear of their lives in case of detection and coerced the multitude even against their will.

But the Athenians, when they heard the news, were far more enraged, and straightway made preparations against both cities.

And Brasidas, expecting their coming, conveyed away to Olynthus in Chalcidice the women and children of the Scionaeans and Mendaeans, and sent over to protect them five hundred Peloponnesian hoplites and three hundred Chalcidian targeteers, with Polydamidas as commander of the whole. And the two cities together made preparations for their defence, in the belief that the Athenians would soon be at hand.