- Author: Mrs. H. D. Everett Author Record # 20578
- Legal Name: Everett, Henrietta Dorothy
- Birthplace: Gillingham, Kent, England, UK
- Birthdate: January 1851
- Deathdate: 16 September 1923
- Language: English
- Webpages: Encyclopedia of Fantasy, Library of Congress, Wikipedia-EN, WorldCat
- Used These Alternate Names: Theo. Douglas, Mrs. Everett, Henrietta D. Everett, H. D. Everett
- Note: British writer born as Henrietta Dorothy Huskisson and known primarily as Theo Douglas; "At least half her 22 novels had fantasy and supernatural content." --Encyclopedia of Fantasy
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Novels
- Iras; a Mystery (1896)
- Malevola (1914)
- A Girl in White (1920)
- A Perplexing Case (1920)
- A Water Witch (1920)
- Anne's Little Ghost (1920)
- Beyond the Pale (1920)
- Fingers of a Hand (1920)
- Nevill Nugent's Legacy (1920)
- Over the Wires (1920)
- Parson Clench (1920)
- The Crimson Blind (1920)
- The Death Mask (1920)
- The Lonely Road (1920)
- The Next Heir (1920)
- The Pipers of Mallory (1917)
- The Whispering Wall (1916)
- The Wind of Dunowe (1920)