History of the Peloponnesian War

In this way then observing, on a clearer view, that the Lacedaemonians were more numerous than he had expected—for before this, he imagined that they took in provisions for a smaller number—and now perceiving that the Athenians were more in earnest about it, as a thing that was worth their attention, and that the island was more easy to land on, he was preparing for the adventure, by sending for troops from the neighbouring allies, and getting every thing else in readiness, when Cleon, after previously sending him word that he was coming, arrived at Pylus with the forces he had asked for.

After their meeting, they sent, in the first place, a herald to the camp on the continent, wishing to know whether, without running any risk, they would desire the men in the island to surrender to them their arms and themselves, on condition of their being kept in mild custody, till some general agreement were concluded.