The Dweller-in-Darkness is a fictional character appearing in American comic books published by Marvel Comics. He is a demon, one of the Fear Lords, who has clashed with Doctor Strange.
The Dweller-in-Darkness was first mentioned in Thor #229-230 (November–December, 1974), by Gerry Conway and Rich Buckler. The character is first fully revealed in Doctor Strange #30 (August, 1978), by Roger Stern and Tom Sutton.
The character subsequently appears in Doctor Strange #32-33 (December 1978, February 1979), #35-37 (June–October 1979), Fantastic Four Annual #23 (1990), Doctor Strange #31-33 (July–September 1991), #38-40 (January–March 1992), and Adventures of the X-Men #11-12 (February–March 1997).
The Dweller-in-Darkness received an entry in The Official Handbook of the Marvel Universe: Horror #1 (2005).
The Dweller-in-Darkness is a demon from the dimension Everinnye, like the demon Nightmare. The Dweller became shunned by his people for following "The Way of the Shamblu". Like Nightmare, the Dweller feeds on the fear of living beings; fear both increases his powers and keeps him alive.
Spirits of death listen to me
Lavish light of black angels upon me
Slay my fears and doubts
I want to be free
In darkness
Forces of fire destroy the light
Fill me with power of flame
Fill the sky with fire ashes
Embers of the former grandeur
In darkness
The demons of hell
Let me touch the eternity
Knowledge of truth - detriment of god
Master Lucifer you will never fall
Open secrets of nine gates to us
Our souls are yours
We are ready to follow you