Against this place Brasidas marched with his army, setting out from Arnae in Chalcidice. Arriving about dusk at Aulon and Bromiscus,According to tradition, the scene of the death of Euripides. where the lake Bolbe has its outlet into the sea, he took supper and then proceeded by night.

The weather was bad and somewhat snowy, and for this reason he made the more haste, wishing to escape the notice of the people in Amphipolis, except those who were to betray it.

For there were in the place some settlers from Argilus, an Andrian colony; these and some others were his accomplices in this intrigue, some instigated by Perdiccas, others by the Chalcidians.