William Bence
People of the Bison
1966
from the dustjacket:

Starving and alone, young Kron, once the picturemaker for his Stone Age tribe, was found by the People of the Bison after the massacre of his clan. Not so advanced, and influenced by the insidious words of Ak-ka, the Bison medicine man, the People mistrusted Kron's strange magic stone drawings. And even when he helped them find desperately needed food, the boy remained an outcast, forbidden to express himself in art.

He is fortunate in being adopted by Lit, the tribe's wiseman, who protects him from Ak-ka. And with the friendship and additional backing of huge Tull, the chief's son, Kron meets with courage and daring all the challenges of a hostile environment. Savage encounters with mammoths, saber-toothed tigers, giant flesh-eating bears, the ferocious Horse People, and the more subtle dangers of the power — mad medicine man's vicious plots, all serve to forge Kron into a man. After proving his trustworthiness and bravery, his adopted tribe eventually accepts him and he can draw again!

Exciting and realistic, this account presents a colorful portrait of Stone Age life — the constant threats from nature and from other tribes, the awkward beginnings of community life, and the depiction of the artist's role and his struggle for expression.