History of the Peloponnesian War

Moreover Atalanta, the island near the Opuntian Locrians, which had previously been unoccupied, was fortified by the Athenians as a stronghold at the close of this summer, to prevent privateers from sailing out from Opus and the rest of Locris, and plundering Euboea. These were the events which occurred in the course of this summer, after the return of the Peloponnesians from Attica.