History of the Peloponnesian War

At the very commencement of the following winter, when the towns in Boeotia were to be delivered up to Hippocrates and Demosthenes, the Athenian generals, and Demosthenes was to repair with his ships to Siphae, Hippocrates to Delium; a mistake having been made in the days on which they were both to take the field, Demosthenes sailed first to Siphae, with the Acarnanians and many allies from those parts on board, but did not succeed in his undertaking, through information of the design having been given by Nicomachus, a Phocian of Phanoteus, who told the Lacedaemonians, and they the Boeotians.