Ab urbe condita
Titus Livius (Livy)
Livy. History of Rome, Volumes 1-2. Roberts, Canon, Rev, translator. London, New York: J. M. Dent and Sons; E. P. Dutton and Co., 1912.
A very large quantity of plunder had already been secured when some cohorts of Etruscan peasantry, hastily got together by the authorities of the neighbourhood, sought to check the foragers;
they were, however, so badly organised that, instead of rescuing the prey, they almost fell a prey themselves.
After putting them to flight with heavy loss, the Romans ravaged the country far and wide, and returned to their camp loaded with plunder of every kind.
It happened to be during this raid that a deputation, consisting of five members of the senate with two tribunes of the plebs, came to warn Fabius, in the name of the senate, not to traverse the Ciminian forest. They were very glad to find that they had come too late to prevent the expedition, and returned to Rome to report victory.
This expedition did not bring the war to a close, it only extended it. The whole country lying below the Ciminian range had felt the effect of his devastations, and they roused the indignation of the cantons of Etruria and of the adjoining districts of Umbria.
A larger army than had ever assembled before was marched to Sutrium. Not only did they advance their camp beyond the edge of the forest, but they showed such eagerness that they marched down in battle order on to the plain as soon as possible.