History of the Peloponnesian War

Meanwhile the envoys, already mentioned, who had gone from Syracuse to the cities after the capture of Plemmyrium, had succeeded in their mission, and were about to bring the army that they had collected, when Nicias got scent of it, and sent to the Centoripae and Alicyaeans and other of the friendly Sicels, who held the passes, not to let the enemy through, but to combine to prevent their passing, there being no other way by which they could even attempt it, as the Agrigentines would not give them a passage through their country.

Agreeably to this request the Sicels laid a triple ambuscade for the Siceliots upon their march, and attacking them suddenly, while off their guard, killed about eight hundred of them and all the envoys, the Corinthian only excepted, by whom fifteen hundred who escaped were conducted to Syracuse.

About the same time the Camarinaeans also came to the assistance of Syracuse with five hundred heavy infantry, three hundred darters and as many archers, while the Geloans sent crews for five ships, four hundred darters and two hundred horse.

Indeed almost the whole of Sicily, except the Agrigentines, who were neutral, now ceased merely to watch events as it had hitherto done, and actively joined Syracuse against the Athenians.

While the Syracusans after the Sicel disaster put off any immediate attack upon the Athenians, Demosthenes and Eurymedon, whose forces from Corcyra and the continent were now ready, crossed the Ionian gulf with all their armament to the Iapygian promontory,