Introduction to the problem of ngimurok -- Research objectives, theories and methodologies -- Definitions for study -- A phenomenological description of Turkana religious specialists -- Specific observed and described rituals and ritual objects of the ngimurok -- What Turkana ngimurok say about Christians and what Turkana Christians say about ngimurok : ngimurok statements and a Turkana Christian survey -- Conclusions : toward a new approach to Turkana religious specialists today.