So Theramenes met his death; and, now that this obstacle was removed, the Thirty, feeling that they had it in their power to play the tyrant without fear, issued an order forbidding all, whose names were not on the list, to set foot within the city. Retirement in the country districts was no protection, thither the prosecutor followed them, and thence dragged them, that their farms and properties might fall to the possession of the Thirty and their friends. Even Piraeus was not safe; of those who sought refuge there, many were driven forth in similar fashion, until Megara and Thebes overflowed with the crowd of refugees. Presently Thrasybulus, with about seventy followers, sallied out from Thebes, and made himself master of the fortress of Phyle. (1) The weather was brilliant, and the Thirty marched out of the city to repel the invader; with them were the Three Thousand and the Knights. When they reached the place, some of the young men, in the foolhardiness of youth, made a dash at the fortress, but without effect; all they got was wounds, and so retired. The intention of the Thirty now was to blockade the place; by shutting off all the avenues of supplies, they thought to force the garrison to capitulate. But this project was interrupted by a steady downfall of snow that night and the following day. Baffled by this all-pervading enemy they beat a retreat to the city, but not without the sacrifice of many of their camp-followers, who fell a prey to the men in Phyle. The next anxiety of the government in Athens was to secure the farms and country houses against the plunderings and forays to which they would be exposed, if there were no armed force to protect them. With this object a protecting force was despatched to the "boundary estates," (2) about two miles south of Phyle. This corps consisted of the Lacedaemonian guards, or nearly all of them, and two divisions of horse. (3) They encamped in a wild and broken district, and the round of their duties commenced. (1) "A strong fortress (the remains of which still exist) commanding the narrow pass across Mount Parnes, through which runs the direct road from Thebes to Athens, past Acharnae. The precipitous rock on which it stands can only be approached by a ridge on the eastern side. The height commands a magnificent view of the whole Athenian plain, of the city itself, of Mount Hymettus, and the Saronic Gulf,"--"Dict. of Geog., The demi of the Diacria and Mount Parnes." (2) Cf. Boeckh, "P. E. A." p. 63, Eng. ed. (3) Lit. tribes, each of the ten tribes furnishing about one hundred horse.