William H. Hallahan Book order (chronological)

William Hallahan was an American author celebrated for his two occult novels. He transitioned from a career in advertising to a second life as a novelist, publishing eight books over seventeen years. Later in his career, he shifted his focus to non-fiction. Hallahan's distinctive literary voice explores the unsettling depths of the human psyche and the enigmatic nature of existence, leaving readers with lingering questions and a sense of profound mystery.