About the same time that the Lacedaemonians were at the Isthmus, the Mitylenians marched by land with their mercenaries against Methymna, which they thought to gain by treachery. After assaulting the town, and not meeting with the success that they anticipated, they withdrew to Antissa, Pyrrha, and Eresus; and taking measures for the better security of these towns and strengthening their walls, hastily returned home. After their departure the Methymnians marched against Antissa, but were defeated in a sortie by the Antissians and their mercenaries, and retreated in haste after losing many of their number. Word of this reaching Athens, and the Athenians learning that the Mitylenians were masters of the country and their own soldiers unable to hold them in check, they sent out about the beginning of autumn Paches, son of Epicurus, to take the command, and a thousand Athenian heavy infantry; who worked their own passage, and arriving at Mitylene, built a single wall all round it, forts being erected at some of the strongest points. Mitylene was thus blockaded strictly on both sides, by land and by sea, and winter now drew near.