History of the Peloponnesian War
Thucydides
Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.
A disappointment so signal made the Lacedaemonians think that the Lesbians had not spoken the truth; and embarrassed by the non-appearance of the confederates, coupled with the news that the thirty ships round Peloponnese were ravaging the lands near Sparta, they went back home.
Afterwards, however, they got ready a fleet to send to Lesbos, and ordering a total of forty ships from the different cities in the league, appointed Alcidas to command the expedition in his capacity of high admiral.
Meanwhile the Athenians in the hundred ships, upon seeing the Lacedaemonians go home, went home likewise.