Just at this time Euripidas with two companies of Eleans together with his freebooters and mercenaries, so that his whole force of infantry numbered about two thousand two hundred, and with a hundred horsemen, had left <a class="linkToPlace" target="_blank" href="/place?placename=Psophis&groupId=917&placeId=1646">Psophis</a> and was marching through the territories of Pheneus and Stymphalus, knowing nothing of Philip\'s arrival, but bent on laying waste the district round Sicyon.
On the very night on which Philip was encamped near the temple of the Dioscuri, he passed close by the king's camp in the early morning and was just about to invade the territory of Sicyon.
But some of Philip's Cretans, who had left their ranks and were prowling about in search of plunder, fell in with Euripidas' force.
He questioned them, and on learning of the arrival of the Macedonians, without revealing the news to a soul, he led his force back by the road along which he had come,
with the wish and hope of getting a start of the Macedonians and thus passing through the territory of Stymphalus and gaining the difficult highland country above it.
The king, quite ignorant also of the enemy's vicinity and simply in pursuance of his plan, broke up his camp early in the morning and advanced, intending to march past Stymphalus itself in the direction of Caphyae; for it was there that he had written to the Achaeans to assemble in arms.
Walbank Commentary