While Aratus was engaged in these transactions, and in completing these preparations, Lycurgus and Pyrrhias, after an interchange of messages to secure their making their expedition at the same time, marched into Messenia. The Achaean Strategus, aware of their design, came with the mercenaries and some of the picked Achaeans to Megalopolis, with the view of supporting the Messenians. After setting out, Lycurgus got possession of Calamae, a stronghold in Messenia, by treachery; and pressed hurriedly forward to effect a junction with the Aetolians. But Pyrrhias had started from Elis with a wholly inadequate force, and, having been easily stopped at the pass into Messenia by the Cyparissians, had turned back. Lycurgus therefore being unable to effect his junction with Pyrrhias, and not being strong enough by himself, after assaulting Andania for a short time, returned back to Sparta without having effected anything. When the plot of the enemy had thus gone to pieces; Aratus, with a provident regard for the future, arranged with Taurion to provide fifty horse and five hundred foot, and with the Messenians to send an equal number; with the view of using these men to protect the territories of Messenia, Megalopolis, Tegea, and Argos,—for these districts, being on the frontier of Laconia, have to bear the brunt of Lacedaemonian invasion for the rest of the Peloponnese; while with the Achaean levies and mercenaries he planned to guard the parts of Achaia which lay towards Elis and Aetolia.