History of the Peloponnesian War

But in their retreat, when they saw that the greatest part of the army was vanquished, the rest of the Acarnanians setting upon them, they had much ado to recover Olpae in safety. And many of them were slain, whilst they ran into it out of array and in disorder, save only the Mantineans, for these made a more orderly retreat than any part of the army. And so this battle ended, having lasted till the evening.

The next day, Menedaius (Eurylochus and Macarius being now slain), taking the command upon him and not finding how, if he stayed, he should be able to sustain a siege, wherein he should both be shut up by land and also with those Attic galleys by sea, or if he should depart, how he might do it safely, had speech with Demosthenes and the Acarnanian captains, both about a truce for his departure and for the receiving of the bodies of the slain.

And they delivered unto them their dead, and having erected a trophy took up their own dead, which were about three hundred. But for their departure they would make no truce openly [nor] to all; but secretly Demosthenes with his Acarnanian fellow-commanders made a truce with the Mantineans, and with Menedaius and the rest of the Peloponnesian captains and men of most worth, to be gone as speedily as they could, with purpose to disguard the Ambraciotes and multitude of mercenary strangers, and withal to use this as a means to bring the Peloponnesians into hatred with the Grecians of those parts as men that had treacherously advanced their particular interest.