The news of the occupation of Pylos soon reached the Spartans, but at first they paid little heed, thinking that they could expel the audacious intruders whenever they chose to exert themselves. Moreover, they were just then engaged in keeping one of those religious festivals of which the Spartan calendar was so full, and a good part of their army was absent in Attica. Agis, however, the Spartan king, and those under him who were commanding in Attica, took a wiser view of the situation, and cutting short their operations they led their forces with all speed back to Sparta. They were the more inclined to do this as the season was yet early, the weather inclement, and, the corn being still green, they wanted means to nourish their troops. Thus the inventive genius of Demosthenes had already proved of signal service to his country; for this was the shortest of all the Peloponnesian invasions, lasting only fifteen days. On the return of their troops from Attica the Spartans sent a small force to commence the attack on Pylos, and ordered the main body of their army to follow. There was some discontent among those who had already been serving abroad at this second levy, and the full muster of the troops was consequently delayed. In the meantime a message was despatched to a Peloponnesian fleet then sailing to Corcyra, which at this time was in a state of revolution, with orders to return at once, and assist in the campaign against Pylos. Demosthenes was now in imminent danger, being threatened with an immediate assault by sea and land, which he had no adequate means of repelling. Having sent off two of his ships to recall the Athenian squadron from its voyage to Corcyra, he prepared to defend himself, until the arrival of succour, as best he could.