RE: https://wandering.shop/@cstross/117382330824033578
“That's radium,” answered the Chief. “We Horners spend all our time digging radium from the mines under this mountain, and we use it to decorate our homes and make them pretty and cosy. It is a medicine, too, and no one can ever be sick who lives near radium.”
(L. Frank Baum, _The Patchwork Girl of Oz_, 1913)