With the intuitive decision of a great commander, Demosthenes at once saw that the possession of Epipolae was the key to the possession of Syracuse, and he resolved to make a prompt and vigorous attempt to recover that position, while his force was unimpaired, and the consternation which its arrival had produced among the besieged remained unabated. The Syracusans and their allies had run out an outwork along Epipolae from the city walls, intersecting the fortified lines of circumvallation which Nicias had commenced, but from which they had been driven by Gylippus. Could Demosthenes succeed in storming this outwork, and in re-establishing the Athenian troops on the high ground, he might fairly hope to be able to resume the circumvallation of the city, and become the conqueror of Syracuse: for, when once the besiegers' lines were completed, the number of the troops with which Gylippus had garrisoned the place would only tend to exhaust the stores of provisions, and accelerate its downfall. An easily-repelled attack was first made on the outwork in the day-time, probably more with the view of blinding the besieged to the nature of the main operations than with any expectation of succeeding in an open assault, with every disadvantage of the ground to contend against. But, when the darkness had set in, Demosthenes formed his men in columns, each soldier taking with him five days' provisions, and the engineers and workmen of the camp following the troops with their tools, and all portable implements of fortification, so as at once to secure any advantage of ground that the army might gain. Thus equipped and prepared, he led his men along by the foot of the southern flank of Epipolae, in a direction towards the interior of the island, till he came immediately below the narrow ridge that forms the extremity of the high ground looking westward. He then wheeled his vanguard to the right, sent them rapidly up the paths that wind along the face of the cliff, and succeeded in completely surprising the Syracusan outposts, and in placing his troops fairly on the extreme summit of the all-important Epipolae. Thence the Athenians marched eagerly down the slope towards the town, routing some Syracusan detachments that were quartered in their way, and vigorously assailing the unprotected part of the outwork. All at first favoured them. The outwork was abandoned by its garrison, and the Athenian engineers began to dismantle it. In vain Gylippus brought up fresh troops to check the assault: the Athenians broke and drove them back, and continued to press hotly forward, in the full confidence of victory. But, amid the general consternation of the Syracusans and their confederates, one body of infantry stood firm. This was a brigade of their Boeotian allies, which was posted low down the slope of Epipolae, outside the city walls. Coolly and steadily the Boeotian infantry formed their line, and, undismayed by the current of