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 great slaughter of the fugitives took place both in the city and in the fields outside. Furious men accounted for many inside the walls, whilst Valerius' troops were more lightly equipped for pursuit, and they did not put an end to the carnage till nightfall prevented their seeing any longer.
After the recapture of Sutrium and its restoration to our allies, the army marched to Nepete, which had surrendered to the Etruscans and of which they were in complete possession.
It looked as if the capture of that city would give more trouble, not only because the whole of it was in the hands of the enemy, but also because the surrender had been effected through the treachery of some of the townsfolk.
Camillus, however, determined to send a message to their leaders requesting them to withdraw from the Etruscans and give a practical proof of that loyalty to allies which they had implored the Roman to observe towards them.
Their reply was that they were powerless; the Etruscans were holding the walls and guarding the gates. At first it was sought to intimidate the townsmen by harrying their territory.