Bonesetter 3 -summer-
by Laurence E Dahners
This is the third book in the Bonesetter series, a pre-historical account of Pell, a boy in a primitive society who learns to "set bones." In this third story he’s become the de facto leader of the Cold Springs tribe, though he still resists the mantle. The tale follows his invention of such things as the spear thrower, chimney and the beginnings of agriculture.