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.
Owing to the length of the war, there were frequent conversations between the troops on both sides, and a Roman on outpost duty asked one of the townsmen who was nearest to him who the man was who was throwing out such dark hints about the Alban Lake.
When he heard that he was a soothsayer, being himself a man not devoid of religious fears, he invited the prophet to an interview on the pretext of wishing to consult him, if he had time, about a portent which demanded his own personal expiation.
When the two had gone some distance from their respective lines, unarmed, apprehending no danger, the Roman, a young man of immense strength, seized the feeble old man in the sight of all, and in spite of the outcry of the Etruscans, carried him off to his own side.
He was brought before the commander-in-chief and then sent to the senate in Rome. In reply to inquiries as to what he wanted people to understand by his remark about the Alban Lake, he said that the gods must certainly have been wroth
with the people of Veii on the day when they inspired him with the resolve to disclose the ruin which the Fates had prepared for his native city.
What he had then predicted under divine inspiration he could not now recall or unsay, and perhaps he would incur as much guilt by keeping silence about things which it was the will of heaven should be revealed as by uttering what ought to be concealed.
It stood recorded in the Books of Fate, and had been handed down by the occult science of the Etruscans, that whenever the water of the Alban Lake overflowed and the Romans drew it off in the appointed way, the victory over the Veientines would be granted them; until that happened the gods would not desert the walls of Veii. Then he explained the prescribed mode of drawing off the water.
The senate, however, did not regard their informant as sufficiently trustworthy in a matter of such importance, and determined to wait for the return of their embassy with the oracular reply of the Pythian god.