Myths of the Cherokee by James Mooney

Wafford, the rest from Swimmer. The stories are characteristic of Indian belief and might be paralleled in any tribe. The great Kiowa chief, Set-ängya, already mentioned, was--and still is--believed by his tribe to have possessed a magic knife, which he carried in his stomach and could produce from his mouth at will. The Kiowa assert that it was this knife, which of course the soldiers failed to find when disarming him, with which he attacked the guard in the encounter that resulted in his death.