This done, the Plataeans sent a messenger to Athens, gave back the dead to the Thebans under a truce, and arranged things in the city as seemed best to meet the present emergency. The Athenians meanwhile, having had word of the affair sent them immediately after its occurrence, had instantly seized all the Boeotians in Attica, and sent a herald to the Plataeans to forbid their proceeding to extremities with their Theban prisoners without instructions from Athens. The news of the men’s death had of course not arrived; the first messenger having left Plataea just when the Thebans entered it, the second just after their defeat and capture; so there was no later news. Thus the Athenians sent orders in ignorance of the facts; and the herald on his arrival found the men slain. After this the Athenians marched to Plataea and brought in provisions, and left a garrison in the place, also taking away the women and children and such of the men as were least efficient. After the affair at Plataea, the treaty had been broken by an overt act, and Athens at once prepared for war, as did also Lacedaemon and her allies. They resolved to send embassies to the King and to such other of the barbarian powers as either party could look to for assistance, and tried to ally themselves with the independent states at home. Lacedaemon, in addition to the existing marine, gave orders to the states that had declared for her in Italy and Sicily to build vessels up to a grand total of five hundred, the quota of each city being determined by its size, and also to provide a specified sum of money. Till these were ready they were to remain neutral and to admit single Athenian ships into their harbours. Athens on her part reviewed her existing confederacy, and sent embassies to the places more immediately round Peloponnese—Corcyra, Cephallenia, Acarnania, and Zacynthus—perceiving that if these could be relied on she could carry the war all round Peloponnese.