In the retreat of the vanquished army, a considerable division, pressed by the pursuers and mistaking the road, dashed into a field on some private property, with a deep trench all round it, and no way out.
Being acquainted with the place, the Athenians hemmed their front with heavy infantry, and placing the light troops round in a circle, stoned all who had gone in.
Corinth here suffered a severe blow.
The bulk of her army continued its retreat home.
About this time the Athenians began to build the long walls to the sea, that towards Phalerum and that towards Piraeus.
Meanwhile the Phocians made an expedition against Doris, the old home of the Lacedaemonians, containing the towns of Boeum, Kitinium, and Erineum.
They had taken one of these towns, when the Lacedaemonians under Nicomedes, son of Cleombrotus, commanding for King Pleistoanax, son of Pausanias, who was still a minor, came to the aid of the Dorians with fifteen hundred heavy infantry of their own, and ten thousand of their allies.
After compelling the Phocians to restore the town on conditions, they began their retreat.
The route by sea, across the Crissaean gulf, exposed them to the risk of being stopped by the Athenian fleet; that across Geraneia seemed scarcely safe, the Athenians holding Megara and Pegae.
For the pass was a difficult one, and was always guarded by the Athenians; and, in the present instance, the Lacedaemonians had information that they meant to dispute their passage.
So they resolved to remain in Boeotia, and to consider which would be the safest line of march.
They had also another reason for this resolve.
Secret encouragement had been given them by a party in Athens, who hoped to put an end to the reign of democracy and the building of the long walls.