History of the Peloponnesian War

And so, marching in the rain and crossing the river with difficulty, they arrived too late, some of their men having already been slain and others taken captive alive.

And when the Thebans learned what had happened, they began to plot against the Plataeans who were outside the city—there were, of course, men in the fields and household property, as the trouble had come unexpectedly in time of peace—for they desired to have such men as they could lay hands on as hostages for those within, in case any of them had chanced to be taken captive. Such then were their plans;

but the Plataeans, while the Thebans were still deliberating, suspected that something of the sort would be done, and fearing for those outside sent out a herald to the Thebans, saying that they had done an impious thing in trying to seize their city in time of peace, and they ;blde them do no injury outside the walls; if they did, they on their part would put to death the men whom they held captive, but if the Thebans withdrew from their territory they would restore the men to them. Now this is the account which the Thebans give, and they allege that the Plataeans confirmed their promise with an oath;