Halting now in Boeotia, Nicomedes entered into a clandestine communication with certain of the oligarchic party in Athens, the object of the latter being the overthrow of the existent popular constitution. With this object was certainly linked the recall of Cimon, though there is no reason to believe that great general a party in the treason. This conspiracy was one main reason of the halt in Boeotia. Another was, probably, the conception of a great and politic design, glanced at only by historians, but which, if successful, would have ranked among the masterpieces of Spartan statesmanship. This design was--while Athens was to be weakened by internal divisions, and her national spirit effectually curbed by the creation of an oligarchy, the tool of Sparta--to erect a new rival to Athens in the Boeotian Thebes. It is true that this project was not, according to Diodorus, openly apparent until after the battle of Tanagra. But such a scheme required preparation; and the sojourn of Nicomedes in Boeotia afforded him the occasion to foresee its possibility and prepare his plans. Since the Persian invasion, Thebes had lost her importance, not only throughout Greece, but throughout Boeotia, her dependant territory. Many of the states refused to regard her as their capital, and the Theban government desired to regain its power. Promises to make war upon Athens rendered the Theban power auxiliary to Sparta: the more Thebes was strengthened, the more Athens was endangered: and Sparta, ever averse to quitting the Peloponnesus, would thus erect a barrier to the Athenian arms on the very frontiers of Attica. VII. While such were the designs and schemes of Nicomedes, the conspiracy of the aristocratic party could not be so secret in Athens but what some rumour, some suspicion, broke abroad. The people became alarmed and incensed. They resolved to anticipate the war; and, judging Nicomedes cut off from retreat, and embarrassed and confined in his position, they marched against him with a thousand Argives, with a band of Thessalian horse, and some other allied troops drawn principally from Ionia, which, united to the whole force of the armed population within their walls, amounted, in all, to fourteen thousand men.