When the appointed day came, the Carnutes, under the command of Cotuatus and Conetodunus, desperate men, meet together at Genabum , and slay the Roman citizens who had settled there for the purpose of trading (among the rest, Caius Fusius Cita, a distinguished Roman knight, who by Caesar's orders had presided over the provision department), and plunder their property. The report is quickly spread among all the states of Gaul; for, whenever a more important and remarkable event takes place, they transmit the intelligence through their lands and districts by a shout; the others take it up in succession, and pass it to their neighbors, as happened on this occasion; for the things which were done at Genabum at sunrise, were heard in the territories of the Arverni before the end of the first watch, which is an extent of more than a hundred and sixty miles.

There in like manner, Vercingetorix the son of Celtillus the Arvernian, a young man of the highest power (whose father had held the supremacy of entire Gaul, and had been put to death by his fellow-citizens, for this reason, because he aimed at sovereign power), summoned together his dependents, and easily excited them. On his design being made known, they rush to arms: he is expelled from the town of Gergovia , by his uncle Gobanitio and the rest of the nobles, who were of opinion, that such an enterprise ought not to be hazarded: he did not however desist, but held in the country a levy of the needy and desperate. Having collected such a body of troops, he brings over to his sentiments such of his fellow-citizens as he has access to: he exhorts them to take up arms in behalf of the general freedom, and having assembled great forces he drives from the state his opponents, by whom he had been expelled a short time previously. He is saluted king by his partisans; he sends embassadors in every direction, he conjures them to adhere firmly to their promise. He quickly attaches to his interests the Senones , Parisii , Pictones, Cadurci, Turones , Aulerci, Lemovice, and all the others who border on the ocean; the supreme command is conferred on him by unanimous consent. On obtaining this authority, he demands hostages from all these states, he orders a fixed number of soldiers to be sent to him immediately; he determines what quantity of arms each state shall prepare at home, and before what time; he pays particular attention to the cavalry. To the utmost vigilance he adds the utmost rigor of authority; and by the severity of his punishments brings over the wavering: for on the commission of a greater crime he puts the perpetrators to death by fire and every sort of tortures; for a slighter cause, he sends home the offenders with their ears cut off, or one of their eyes put out, that they may be an example to the rest, and frighten others by the severity of their punishment.

Having quickly collected an army by their punishments, he sends Lucterius, one of the Cadurci, a man the utmost daring, with part of his forces, into the territory of the Ruteni; and marches in person into the country of the Bituriges. On his arrival, the Bituriges send embassadors to the Aedui, under whose protection they were, to solicit aid in order that they might more easily resist the forces of the enemy. The Aedui, by the advice of the lieutenants whom Caesar had left with the army, send supplies of horse and foot to succor the Bituriges. When they came to the river Loire , which separates the Bituriges from the Aedui, they delayed a few days there, and, not daring to pass the river, return home, and send back word to the lieutenants that they had returned through fear of the treachery of the Bituriges, who, they ascertained, had formed this design, that if the Aedui should cross the river, the Bituriges on the one side, and the Arverni on the other, should surround them. Whether they did this for the reason which they alleged to the lieutenants, or influenced by treachery, we think that we ought not to state as certain, because we have no proof. On their departure, the Bituriges immediately unite themselves to the Arverni.

These affairs being announced to Caesar in Italy, at the time when he understood that matters in the city had been reduced to a more tranquil state by the energy of Cneius Pompey, he set out for Transalpine Gaul. After he had arrived there, he was greatly at a loss to know by what means he could reach his army. For if he should summon the legions into the province, he was aware that on their march they would have to fight in his absence; he foresaw too that if he himself should endeavor to reach the army, he would act injudiciously, in trusting his safety even to those who seemed to be tranquilized.