12.6
For when the Barbarians were besieging Clusium, Fabius Ambustus was sent from Rome to their camp to bring about a cessation of hostilities on behalf of the besieged. But on receiving an unseemly answer, he thought his office of ambassador was at an end, and committed the youthful folly of taking up arms for the Clusians and challenging the bravest of the Barbarians to single combat.
12.7
Fabius fought successfully, unhorsed his adversary, and stripped him of his armour. But when the Gauls discovered who he was, they sent a herald to Rome denouncing Fabius for violating a truce, breaking his oath, and fighting against them before war was formally declared. At Rome the Fetiales tried to persuade the senate to deliver Fabius into the hands of the Gauls, but he took refuge with the multitude, and through the favour of the populace evaded his punishment. After a little, therefore, the Gauls came up and sacked Rome, with the exception of the Capitol. But this story is more fully given in my Life of Camillus. Chapters xvii.-xxii.
13.1
The priesthood of the Salii Numa is said to have been established for the following reason. In the eighth year of his reign a pestilence, which traversed Italy, distracted Rome also. The story goes that while the people were disheartened by this, a bronze buckler fell from heaven, which came into the hands of Numa, and a wonderful account of it was given by the king, which he learned from Egeria and the Muses.
