"Brother of the Third Degree" (1894) is an occult initiation novel by Will L. Garver, working in the late-Victorian tradition of esoteric fiction that blends Freemasonic ritual structure with Theosophical and Rosicrucian themes. The excerpt follows a narrator being blindly conducted through a series of elaborately staged ceremonial chambers — black, red, then green — each designed to test his resolve through escalating horror, symbolic threat, and moral confrontation. The central set piece is a binding oath the initiate must sign, affirming a deterministic metaphysics (karma as inescapable law, no divine forgiveness, universal animism) and invoking demons to consume him body and soul should he ever betray the lodge. Distinctively, the text introduces an ambiguity about whether this brotherhood represents legitimate "White Masters" or sinister "Black Brothers" who have stolen occult livery — a suspicion triggered when the lodge demands a half-million-franc check, which the narrator notes true White adepts would never do. The protagonist signs away his fortune, writes a fake suicide note, and continues despite warnings that failure will drive his sister mad, framing occult initiation as a wager of sanity, wealth, and familial safety against spiritual advancement. The novel is notable for rendering esoteric doctrine (karma, panpsychism, astral planes) as thriller-plot mechanics rather than dry teaching.