When Rahan first enters a valley rich with game, he comes across Ursus, a curious, hairy little creature, who speaks the language of Those-Who-Walk-Upright. When the little animal steals his food, Rahan sets a trap to snare it… but ends up being caught in it himself. Hunters from the Wolf Clan, led by Sanga and a lovely huntress called Noama, set him free … while laughing at him. They are wary of this stranger, but later, when he saves them all during a dangerous rhinoceros hunt, they welcome him with open arms. The Wolves ask Rahan to join them in another hunt. When the youth realises that now their prey is a young Cave-Dweller woman, he adamantly refuses. His father, Crao, taught him to never take the life of Those-Who-Walk-Upright. Rahan and the Wolves oppose each other... but none of them realise that Tetya, their would-be victim, is a blind Shaman, the Cave-Dwellers' Sorceress, gifted with extraordinary powers!