The soil of the Phliasian valley is excellent; the central part of it is given up almost exclusively to vineyards which furnish now, as they did in antiquity, a fine fiery wine like Burgundy. In autumn the red and golden foliage of the fading vines lends a richer glow of colour to the beautiful landscape. Some light is thrown on the topography of Phlius by the events which followed the battle of Leuctra. The Phliasians had been friends of Sparta when Sparta was at the height of her power; and after the disastrous day of Leuctra, when Sparta was deserted by allies and subjects alike, the Phliasians stood loyally by their old friends. This drew down on them the hostility of the victorious Thebans and their allies. In 368 B.C. a body of Arcadians and Eleans, marching through the pass of Nemea to join the Thebans, were induced by some Phliasian exiles to make an attempt to surprise and capture Phlius. Six hundred men, supplied with ladders, being sent in advance, concealed themselves by night at the foot of the citadel walls. Next morning the sentinels on Mount Tricaranum, to the east of the town, signalled the approach of the enemy from the valley of Nemea. The eyes of the citizens were thus turned to the hills, over which they momentarily expected to see the enemy appearing. Taking advantage of their distraction the six hundred men under the acropolis planted their ladders and were soon masters of the almost deserted citadel. But the citizens rallied, and after a fierce struggle drove the enemy with fire and sword over the ramparts.