The next day the Athenians from the Circle proceeded to fortify the cliff above the marsh which on this side of Epipolae looks towards the great harbour; this being also the shortest line for their work to go down across the plain and the marsh to the harbour. Meanwhile the Syracusans marched out and began a second stockade, starting from the city, across the middle of the marsh, digging a trench alongside to make it impossible for the Athenians to carry their wall down to the sea. As soon as the Athenians had finished their work at the cliff they again attacked the stockade and ditch of the Syracusans. Ordering the fleet to sail round from Thapsus into the great harbour of Syracuse, they descended at about dawn from Epipolae into the plain, and laying doors and planks over the marsh, where it was muddy and firmest, crossed over on these, and by daybreak took the ditch and the stockade, except a small portion which they captured afterwards. Abattle now ensued, in which the Athenians were victorious, the right wing of the Syracusans flying to the town and the left to the river.
The three hundred picked Athenians, wishing to cut off their passage, pressed on at a run to the bridge, when the alarmed Syracusans, who had with them most of their cavalry, closed and routed them, hurling them back upon the Athenian right wing, the first tribe of which was thrown into a panic by the shock. Seeing this, Lamachus came to their aid from the Athenian left with a few archers and with the Argives, and crossing a ditch, was left alone with a few that had crossed with him, and was killed with five or six of his men. These the Syracusans managed immediately to snatch up in haste and get across the river into a place of security, themselves retreating as the rest of the Athenian army now came up.
Meanwhile those who had at first fled for refuge to the city, seeing the turn affairs were taking, now rallied from the town and formed against the Athenians in front of them, sending also a part of their number to the Circle on Epipolae, which they hoped to take while denuded of its defenders. These took and destroyed the Athenian outwork of a thousand feet, the Circle itself being saved by Nicias, who happened to have been left in it through illness, and who now ordered the servants to set fire to the engines and timber thrown down before the wall; want of men, as he was aware, rendering all other means of escape impossible. This step was justified by the result, the Syracusans not coming any further on account of the fire, but retreating. Meanwhile succours were coming up from the Athenians below, who had put to flight the troops opposed to them; and the fleet also, according to orders, was sailing from Thapsus into the great harbour. Seeing this, the troops on the heights retired in haste, and the whole army of the Syracusans re-entered the city, thinking that with their present force they would no longer be able to hinder the wall reaching the sea.
After this the Athenians set up a trophy and restored to the Syracusans their dead under truce, receiving in return Lamachus and those who had fallen with him. The whole of their forces, naval and military, being now with them, they began from Epipolae and the cliffs and enclosed the Syracusans with a double wall down to the sea.
Provisions were now brought in for the armament from all parts of Italy; and many of the Sicels, who had hitherto been looking to see how things went, came as allies to the Athenians: there also arrived three ships of fifty oars from Tyrrhenia. Meanwhile everything else progressed favourably for their hopes. The Syracusans began to despair of finding safety in arms, no relief having reached them from Peloponnese, and were now proposing terms of capitulation among themselves and to Nicias, who after the death of Lamachus was left sole commander. No decision was come to, but, as was natural with men in difficulties and besieged more straitly than before, there was much discussion with Nicias and still more in the town. Their present misfortunes had also made them suspicious of one another;and the blame of their disasters was thrown upon the ill-fortune or treachery of the generals under whose command they had happened; and these were deposed and others, Heraclides, Eucles, and Tellias, elected in their stead.
Meanwhile the Lacedaemonian, Gylippus, and the ships from Corinth were now off Leucas, intent upon going with all haste to the relief of Sicily. The reports that reached them being of an alarming kind, and all agreeing in the falsehood that Syracuse was already completely invested, Gylippus abandoned all hope of Sicily, and wishing to save Italy, rapidly crossed the Ionian Sea to Tarentum with the Corinthian, Pythen, two Laconian, and two Corinthian vessels, leaving the Corinthians to follow him after manning, in addition to their own ten, two Leucadian and two Ambraciot ships. From Tarentum Gylippus first went on an embassy to Thurii, and claimed anew the rights of citizenship which his father had enjoyed; failing to bring over the townspeople, he weighed anchor and coasted along Italy. Opposite the Terinaean Gulf he was caught by the wind which blows violently and steadily from the north in that quarter, and was carried out to sea;and after experiencing very rough weather, remade Tarentum, where he hauled ashore and refitted such of his ships as had suffered most from the tempest. Nicias heard of his approach, but, like the Thurians, despised the scanty number of his ships, and set down piracy as the only probable object of the voyage, and so took no precautions for the present.
About the same time in this summer, the Lacedaemonians invaded Argos with their allies, and laid waste most of the country. The Athenians went with thirty ships to the relief of the Argives, thus breaking their treaty with the Lacedaemonians in the most overt manner. Up to this time incursions from Pylos, descents on the coast of the rest of Peloponnese, instead of on the Laconian, had been the extent of their co-operation with the Argives and Mantineans; and although the Argives had often begged them to land, if only for a moment, with their heavy infantry in Laconia, lay waste ever so little of it with them, and depart, they had always refused to do so. Now, however, under the command of Phytodorus, Laespodius, and Demaratus, they landed at Epidaurus Limera, Prasiae, and other places, and plundered the country; and thus furnished the Lacedaemonians with a better pretext for hostilities against Athens. After the Athenians had retired from Argos with their fleet, and the Lacedaemonians also, the Argives made an incursion into the Phlisaid, and returned home after ravaging their land and killing some of the inhabitants.