In this way Brasidas hurried through Thessaly before any one could be got ready to stop him, and reached Perdiccas and Chalcidice. The departure of the army from Peloponnese had been procured by the Thracian towns in revolt against Athens and by Perdiccas, alarmed at the successes of the Athenians. The Chalcidians thought that they would be the first objects of an Athenian expedition, not that the neighbouring towns which had not yet revolted did not also secretly join in the invitation; and Perdiccas also had his apprehensions on account of his old quarrels with the Athenians, although not openly at war with them, and above all wished to reduce Arrhabaeus, king of the Lyncestians. It had been less difficult for them to get an army to leave Peloponnese, because of the ill fortune of the Lacedaemonians at the present moment. The attacks of the Athenians upon Peloponnese, and in particular upon Laconia, might, it was hoped, be diverted most effectually by annoying them in return, and by sending an army to their allies, especially as they were willing to maintain it and asked for it to aid them in revolting. The Lacedaemonians were also glad to have an excuse for sending some of the Helots out of the country, for fear that the present aspect of affairs and the occupation of Pylos might encourage them to move. Indeed fear of their numbers and obstinacy even persuaded the Lacedaemonians to the action which I shall now relate, their policy at all times having been governed by the necessity of taking precautions against them. The Helots were invited by a proclamation to pick out those of their number who claimed to have most distinguished themselves against the enemy, in order that they might receive their freedom; the object being to test them, as it was thought that the first to claim their freedom would be the most high-spirited and the most apt to rebel. As many as two thousand were selected accordingly, who crowned themselves and went round the temples, rejoicing in their new freedom. The Spartans, however, soon afterwards did away with them, and no one ever knew how each of them perished. The Spartans now therefore gladly sent seven hundred as heavy infantry with Brasidas, who recruited the rest of his force by means of money in Peloponnese.