So Richardetto spake, and by his say Made the dark path they trod less irksome be.
Up a small height this while their journey lay, Girded with cliff and cavern, drear to see.
Bristling with rocks, a steep and narrow way Was to that rugged hill the stubborn key;
A town, called Agrismonte, crowned the steep, Which Aldigier of Clermont had in keep.