First Edition. S. Liam Dunne dustjacket art. Hubin listed murder mystery with the front flap stating "This, the first American Indian murder mystery...The black gold of newly discovered oil made millionaires of the Osage Tribe and then, suddenly, an epidemic of murder dispatched the redskins, one by one, to the Happy Hunting Grounds." Very Good plus with mild cocking and soiling to boards, pencil name to front free endpaper, in Very Good plus dustjacket, spine and flap edges darkened and shallow chipping to top spine end. A very scarce title.