History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
While both sides were carrying out these measures and busily equipping themselves for the war precisely as if they were just beginning it, first of all the Euboeans in the course of this winter sent envoys to Agis to discuss revolting from Athens. Receiving their proposals, he summoned from Lacedaemon Alcamenes son of Sthenelaïdas and Melanthus to take command in Euboea, and they came with about three hundred neodamodes,[*](The clans of new citizens formed of Helots emancipated for service in war. Cf. 5.34.1; 7.19.3.) while Agis began arranging for their crossing. But in the meantime the Lesbians also came, they also desiring to revolt;