History of the Peloponnesian War

In the meantime, the Mantineans and such as had part in the truce, going out on pretence to gather potherbs and firewood, stole away by small numbers, and as they went, did indeed gather such things as they pretended to go forth for;

but when they were gotten far from Olpae, they went faster away. But the Ambraciotes and others that came forth in the same manner, but in greater troops, seeing the others go quite away, were eager to be gone likewise, and ran outright, as desiring to overtake those that were gone before.

The Acarnanians at first thought they had gone all without a truce alike and pursued the Peloponnesians and threw darts at their own captains for forbidding them and for saying that they went away under truce, as thinking themselves betrayed.

But at last they let go the Mantineans and Peloponnesians, and slew the Ambraciotes only. And there was much contention and ignorance of which was an Ambraciote and which a Peloponnesian. So they slew about two hundred of them, and the rest escaped into Agrais, a bordering territory, where Salynthius, king of the Agraeans and their friend, received them.