Meanwhile the Athenians were to seize Delium, the sanctuary of Apollo, in the territory of Tanagra looking towards Euboea; and all these events were to take place simultaneously upon a day appointed, in order that the Boeotians might be unable to unite to oppose them at Delium, being everywhere detained by disturbances at home.

Should the enterprise succeed, and Delium be fortified, its authors confidently expected that even if no revolution should immediately follow in Boeotia, yet with these places in their hands, and the country being harassed by incursions, and a refuge in each instance near for the partisans engaged in them, things would not remain as they were, but that the rebels being supported by the Athenians and the forces of the oligarchs divided, it would be possible after a while to settle matters according to their wishes.
Such was the plot in contemplation.

Hippocrates with a force raised at home awaited the proper moment to take the field against the Boeotians; while he sent on Demosthenes with the forty ships above mentioned to Naupactus, to raise in those parts an army of Acarnanians and of the other allies, and sail and receive Siphae from the conspirators; a day having been agreed on for the simultaneous execution of both these operations.

Demosthenes on his arrival found Oeniadae already compelled by the united Acarnanians to join the Athenian confederacy, and himself raising all the allies in those countries marched against and subdued Salynthius and the Agraeans; after which he devoted himself to the preparations necessary to enable him to be at Siphae by the time appointed.
About the same time in the summer, Brasidas set out on his march for the Thracian places with seventeen hundred heavy infantry, and arriving at Heraclea in Trachis, from thence sent on a messenger to his friends at Pharsalus, to ask them to conduct himself and his army through the country.

Accordingly there came to Melitia in Achaia Panaerus, Dorus, Hippolochidas, Torylaus, and Strophacus, the Chalcidian proxenus, under whose escort he resumed his march, being accompanied also by other Thessalians, among whom was Niconidas from Larissa, a friend of Perdiccas.