On receiving these accounts, which appear to have first opened the eyes of the Romans to the course and the object of Hannibal, the consul had temporarily given up his expedition to Spain, and had resolved in connection with the Celtic tribes of that region, who were under the influence of the Massiliots and thereby under that of Rome, to receive the Phoenicians on the Rhone, and to obstruct their passage of the river and their march into Italy.

Fortunately for Hannibal, opposite to the point at which he meant to cross, there lay at the moment only the general levy of the Celts, while the consul himself with his army of 22,000 infantry and 2000 horse was still in Massilia, four days' march farther down the stream.

The messengers of the Gallic levy hastened to inform him.

It was the object of Hannibal to convey his army with its numerous cavalry and elephants across the rapid stream under the eyes of the enemy, and before the arrival of Scipio; and he possessed not a single boat.

Immediately by his directions all the boats belonging to the numerous navigators of the Rhone in the neighbourhood were bought up at any price, and the deficiency of boats was supplied by rafts made from felled trees; and in fact the whole numerous army could be conveyed over in one day.
While this was being done, a strong division under Hanno, son of Bomilcar, proceeded by forced marches up the stream till they reached a suitable point for crossing, which they found undefended, situated two short days' march above Avignon.