Here Vercingetorix was intrenched with eighty thousand troops.

It was, like Gergovia, situated on a hill and considered impregnable.

Caesar laid siege to this place (52).
Vercingetorix appealed to all Gaul for aid.

Hardly had the fortress been invested when Caesar's army was surrounded by an immense force of Gauls that had come to the rescue.

Caesar needed now all his skill and genius.
But they did not fail him.