Pausanias Description of Greece 1.13.1

[1] Defeated on this occasion, Pyrrhos retreated with the remainder of his vessels to Tarentum. Here he met with a serious reverse. And his withdrawal, for he knew that the Romans would not let him depart without striking a blow, he contrived in the following manner. On his return from Sicily and his defeat, he first sent various dispatches to Asia (Minor) and to Antigonos, asking some of the kings for troops, some for money, and Antigonos for both. When the envoys returned and their dispatches were delivered, he summoned those in authority, whether from Epeiros or from Tarentum, and without reading any of the dispatches declared that reinforcements would come. A report spread quickly even to the Romans that Macedonians and men from Asia (Minor) also were crossing to the aid of Pyrrhos. The Romans, on hearing this, made no move, but Pyrrhos, on the approach of that very night, crossed to the headlands of the mountain called Keraunion.