Etidorhpa — John Uri Lloyd

"Etidorhpa," first published in 1895, is an incredible adventure about a strange manuscript and the story of a man who divulged the secrets of an occult organization, was kidnapped by the members, and forced to go deep into a cave in Kentucky where he travels to the center of the earth Along the way he discovers many amazing wonders and eventually meets the celestial being, Etidorhpa. His guide in his journey is a strange androgynous, humanoid being who has no eyes and blue skin The story presents a glimpse into 19th century science, secret societies, mystical revelations, the occult, and even hallucinogenic mushrooms. It most certainly has "steampunk" appeal.