The Spartans saw that a vigorous effort must be made, if they would recover their lost ascendancy; and two years later the opportunity occurred for which they were waiting. On the northern side of the Argolic peninsula lies the ancient city of Epidaurus, famous for its rich vineyards, and its great temple of Asclepius, [Footnote: Aesculapius.] the god of healing. For some time past, the Epidaurians, who were in alliance with Sparta, had been involved in a dispute, arising out of some obscure question of ritual, with Argos; and they were now in sore straits, being hard pressed by the whole weight of the Argive power, backed by the new confederacy. This was the pretext needed by the Spartans, and mustering their whole forces they marched, under the command of their king Agis, against Argos.
The Argives had received notice of the advance of Agis, and they immediately marched out to meet him, wishing to engage the Spartans before they had united with their allies from Corinth, Boeotia, and elsewhere, who were assembling in great force at Phlius. The two armies confronted each other for a moment at Methydrium, in Arcadia; but Agis succeeded in avoiding an engagement, and breaking up his camp under cover of darkness pushed on to Phlius. Thereupon the Argives, who were accompanied by their allies from Mantinea and Elis, returned in haste to Argos, and then, marching northwards, took up their position at Nemea, which commanded the ordinary route from Phlius to the Argive territory. But they were again outmanoeuvred by the skilful dispositions of Agis. Avoiding the road by Nemea, which led through a narrow and dangerous pass, he led his Spartans over the mountains and descended into the plain which surrounds the city of Argos. One contingent of his allies had orders to proceed in the same direction by another mountain-path, while the Boeotians, who numbered no less than ten thousand infantry, and five hundred cavalry, were directed to take the high road by Nemea; for Agis expected that by threatening the cultivated lands around Argos he would draw the Argives from their position, and bring them down in haste to the defence of their estates.
The plan was completely successful. As soon as the Argives learnt that Agis was ravaging their fields they set out with all speed towards Argos, and finding Agis engaged in the work of pillage, they drew up their forces, and offered battle. Their situation was in the highest degree perilous. In front of them, cutting them off from the city of Argos, was the flower of the Spartan army, reinforced by the troops of Tegea and Arcadia; on their right flank the mountain slopes swarmed with the infantry of Corinth and Phlius; and in the rear their retreat was cut off by the thronging masses of Boeotians, who were now pouring along the road from Nemea. They were fairly cut off, and seemed delivered over to destruction; nevertheless, such was the presumptuous confidence which possessed them, that they awaited eagerly the signal for battle, crying out that they had caught the Spartans in a trap.
Fortunately for them there were two men among their leaders who took a wiser view of the position; one of these was Alciphron, an official who represented the interests of Sparta at Argos, [Footnote: The Greek word is Proxenos,—a sort of consul.] and the other was Thrasyllus, one of the five generals. These two men entered into a parley with Agis, and by promising to satisfy the demands of Sparta induced him to grant a truce. Agis then drew off his forces, and returned by way of Nemea to Sparta; and the allies, much against their will, were compelled to follow his example. Loud were the murmurs among the confederates, and even among the Spartan soldiers, against Agis, who had thrown away this golden opportunity of humbling the pride of Argos, and brought dishonour on one of the finest armies that had ever been led into the field by a Grecian general. Strange to say, the Argives were not less indignant against the two men who had saved them from overwhelming disaster; and Thrasyllus, the general, narrowly escaped being stoned to death.
IV
The Argives thought themselves bound to abide by the conditions of the truce, though made without their consent; but shortly after the retreat of Agis, an Athenian force of a thousand hoplites and three hundred cavalry arrived at Argos, and Alcibiades, who was present in the character of ambassador, strongly urged the renewal of the campaign. His proposal was warmly supported by the Mantineans and Eleans, and they and the Athenians marched forthwith against Orchomenus in Arcadia, which was in alliance with Sparta; and the Argives, who had wavered at first, soon afterwards joined them. Orchomenus was gained over with little trouble, and then the Eleans were eager to proceed against Lepreum, a town in their alliance which had gone over to Sparta. But the Argives, Athenians, and Mantineans, insisted on attacking Tegea, where there was a party opposed to Sparta, by whose means they hoped to bring this powerful city, the ancient rival of Mantinea, to their side. Thereupon the Eleans abandoned the expedition, and went home in a rage, but the rest of the allies took up their quarters at Mantinea, and prepared to make an attack on Tegea.
The Spartans were in high anger against Agis for his unsoldier-like conduct in the recent campaign, and when they heard of the capitulation of Orchomenus their resentment rose to such a pitch that it was proposed to inflict on him a heavy fine, and raze his house to the ground. At his earnest entreaty they consented to reserve the sentence, and give him an opportunity of wiping out the stain on his honour; but as a mark of diminished confidence they appointed ten commissioners, without whose consent he was not allowed to lead an army out of the city.
They had just come to this decision when an urgent message arrived from Tegea, bidding them to bring help with all speed, or the town would be lost. The imminent peril startled the Spartans from their wonted apathy, and they set out at once in full force to the relief of Tegea. On reaching the borders of Arcadia they sent back the elder and younger men, amounting to a sixth part of the army, to serve as a garrison in Sparta; and at the same time couriers were despatched to summon their allies in Arcadia and central Greece. The Arcadians arrived in time to take part in the battle, but the Boeotians, Corinthians, and others, though they hastened to obey the order, were delayed by a long and difficult march, through the hostile territory of Argos.
Passing by Tegea, Agis entered the district of Mantinea, and having pitched his camp began to lay waste the country. Informed of his approach, the Argives and their allies marched out to meet him, and choosing a position on the slope of a hill, defended in front by rugged and broken ground, they drew up in order of battle. The Spartans, incited, doubtless, by the example of their king, who was eager to redeem his reputation, rushed impetuously to the assault; and they were already within a stone's-throw of the enemy when a Spartan veteran cried out to Agis: "Heal not ill with ill!" His meaning was that in Argos Agis had been too cold, and now he was too hot. Agis heard the warning voice, and his own good sense must have shown him how rashly he was acting; accordingly, at the very moment of encounter, he gave the word to retreat, and fell back to the neighbourhood of Tegea. At this place there was a copious head of water, which, when properly regulated, served to irrigate the fields of Tegea and Mantinea. The disposal of the water-supply was a constant source of dispute between the two rival cities; and Agis now prepared to turn the whole volume of the fountain towards Mantinea, expecting that the Mantineans, when they saw their fields threatened with inundation, would come down into the plain to hinder the mischief.
The Argives and their allies were dumb-foundered by the sudden disappearance of the Spartans; and when they had recovered from their astonishment, they waited impatiently for the order to pursue the runaways. As no such order was given, cries of "Treason!" arose in the ranks, and the generals were openly accused of having sold themselves to the enemy. The Spartans, it was asserted, had been allowed to escape, when they were fairly caught under the walls of Argos; and now the confederates had been betrayed a second time by their officers. Amid the general clamour the Argive commanders stood for a moment confounded and amazed; then recovering themselves they gave the word to advance, and led their forces down into the plain. Here they passed the night in the open field, and early next morning they stood to their arms, and prepared for an immediate attack.