Book 10
23.7
They encamped where night overtook them in their retreat, and during the night there fell on them a “panic.” For causeless terrors are said to come from the god Pan. It was when evening was turning to night that the confusion fell on the army, and at first only a few became mad, and these imagined that they heard the trampling of horses at a gallop, and the attack of advancing enemies; but after a little time the delusion spread to all.
23.8
So rushing to arms they divided into two parties, killing and being killed, neither understanding their mother tongue nor recognizing one another's forms or the shape of their shields. Both parties alike under the present delusion thought that their opponents were Greek, men and armour, and that the language they spoke was Greek, so that a great mutual slaughter was wrought among the Gauls by the madness sent by the god.
23.9
Those Phocians who had been left behind in the fields to guard the flocks were the first to perceive and report to the Greeks the panic that had seized the barbarians in the night. The Phocians were thus encouraged to attack the Celts with yet greater spirit, keeping a more careful watch on their encampments, and not letting them take from the country the necessities of life without a struggle, so that the whole Gallic army suffered at once from a pressing shortage of corn and other food.
23.10
Their losses in Phocis were these: in the battles were killed close on six thousand; those who perished in the wintry storm at night and afterwards in the panic terror amounted to over ten thousand, as likewise did those who were starved to death.