History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
the surrender was made, and they admitted him on the terms of his proclamation. In this way they delivered up the city; and Thucydides and his ships landed at Eion late on the same day.
Brasidas had just taken possession of Amphipolis, and was within a night of taking Eion; for if the ships had not quickly come to its aid, in the morning it would have been in his hands.