Gertrude Barrows Bennett has been called "the woman who invented dark fantasy". She wrote under the pseudonym Francis Stevens. "Citadel of Fear", republished and rediscovered as a "lost classic" in 1970 (then published as a book for the first time) was considered a masterpiece by fellow writer H. P. Lovecraft. A pair of adventurers discover a lost city in the Mexican jungle. One of the adventurers succumbs to an evil god while the other one falls in love.