History of the Peloponnesian War

Now, in the day-time it seemed to be impossible for them to approach and make the ascent unobserved. But having issued orders for five days' provisions, and taken all the stone-masons and carpenters, with all the other apparatus besides, both arrows and every thing else that was necessary for them, should they succeed, to have while they were building, he himself, with Eurymedon and Menander, took the whole force, after the first watch of the night, and advanced against Epipolae, Nicias being left behind in the lines.

When they had come up to the hill on the side of Euryelus, the same way that the former army also had in the first instance made the ascent, they escaped the observation of the Syracusan guard, and having gone to the fort of the Syracusans which was there, they took it, and put part of the garrison to the sword.