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.
In their manifold efforts to escape some even turned to the sea, which was not far off, and seeing the Athenian ships coasting along shore just while the action was going on, swam off to them, thinking it better in the panic they were in, to perish, if perish they must, by the hands of the Athenians, than by those of the barbarous and detested Amphilochians.
Of the large Ambraciot force destroyed in this manner, a few only reached the city in safety; while the Acarnanians, after stripping the dead and setting up a trophy, returned to Argos.
The next day arrived a herald from the Ambraciots who had fled from Olpae to the Agraeans, to ask leave to take up the dead that had fallen after the first engagement, when they left the camp with the Mantineans and their companions, without, like them, having had permission to do so.