Dirk Gently Series

Dirk Gently's Holistic Detective Agency is Douglas Adams' two-novel detective series featuring Dirk Gently, a self-described holistic detective who exploits the fundamental interconnectedness of all things to solve mysteries. Blending comedy, science fiction, fantasy, and surrealism, it is among the most original detective fiction ever written.

• Dirk Gently's Holistic Detective Agency (1987): A ghost, the Electric Monk, Samuel Taylor Coleridge, and a horse on a staircase converge in a metaphysical mystery.
• The Long Dark Tea-Time of the Soul (1988): Dirk investigates Norse gods going inexplicably commercial in 1980s London.