This is a comprehensive study of the thought of William Wade Harris, the Glebo (Liberia) loyalist whose prophetic mission from 19-29 moved tens of thousands of West Africans out of traditional religion into the stream of Christianity and modernization, particularly in the Ivory Coast. It reviews that unparalleled breakthrough, thoroughly examines traditional African, Western missionary and colonial influences which helped determine religious innovation and shape his vocation as prophet of Christ’s reign of peace and prosperity. To this end sources enriched by documents and photos expose biblical eschatological and messianic dynamics which tied Harris’s words, symbols and charisma together in a holistic African Christianity. The source of long-standing contentions between Ivoirian Harrists, Methodists and Catholics is uncovered in the well-intentioned but changing colonial and missionary responses to his impact.