The Door Of The Unreal (1920)

The protagonist, John Lennox, embarks on a quest for purpose after inheriting wealth, leading him to the enigmatic Z lie de Chaumet, who introduces him to spiritualism and the occult. As he delves deeper into her world, John experiences surreal visions that challenge his perception of reality. The novel intricately weaves themes of identity, spirituality, and the interplay between the conscious and unconscious mind, all conveyed through Biss's vivid, poetic prose that creates a dreamlike atmosphere, marking it as a classic of early 20th-century supernatural fiction.