History of the Peloponnesian War

Indeed in every way they made haste to anticipate the Lacedaemonians, by completing the most assailable points of tie work before they came to the rescue; for the greater part of the position was strong by nature, and had no need of fortifications.

Now the Lacedaemonians happened to be celebrating a festival; and, moreover, when they heard it, they made light of it, thinking that when they took the field, either the enemy would not wait their attack, or they should easily take the place by storm. To a certain extent also the fact of their army being still before Athens delayed them.

So the Athenians, after fortifying in six days the side towards the interior, and what most required it, left Demosthenes there with five ships to protect the place, while with the main body of the fleet they hastened on their voyage to Corcyra and Sicily.

When the Peloponnesians in Attica heard of the occupation of Pylus, they returned home with all speed; for the Lacedaemonians and Agis their king thought that the affair of Pylus closely affected them; and, besides, having made their incursion early in the season, and while the corn was still green, they were in want of provisions for most of their troops; while stormy weather, coming on with greater violence than was usual at that season, distressed the army.