John Ballou Newbrough's magnum opus, Oahspe, is a complex and multifaceted work that blends elements of science fiction, fantasy, and religious philosophy. Written in the late 19th century, the book presents a unique cosmology that includes detailed descriptions of otherworldly realms, advanced technologies, and spiritual beings. The text is filled with intricate diagrams, charts, and illustrations that further enhance the reader's understanding of Newbrough's elaborate vision. Oahspe is a challenging read that rewards those who are willing to delve deeply into its esoteric themes and symbolic language. It is a work that transcends traditional genres and defies easy categorization, making it a fascinating and thought-provoking literary artifact of its time.