* The Haunters and the Haunted (1908)
* Havsalt og korditt (1911)
* Lesliana:Leaves from a Life (1912)
* Rester (1914)
* Diana og to symfonier (1916)
* Diana and Destiny (1918)
* Diana og Octavia (1919)
* Diana and the Serenader (1920)
* Diana and the Crystal Gazer (1921)
* Diana and the Dogs (1922)
* Diana and Discovery (1924)
* The Man with Latent Powers (1926)
* Diana og døren (1928)
* The Trireme (1929)
* Diana and Destiny (andre serie) (1931)
* Diana and Destiny (tredje serie) (1932)
* The White Lotus (1934)
* Diana og den nye dagen (1936)
* The Trumpet Soundeth (1938)
* The Tower (1941)
* Diana and the Cross Roads (1942)
* Den guddommelige plan (1944)
* I Guds navn (1946)
* The Valley of Vision (1948)
* Diana and the Lost City (1950)
* The Enchanted Land (1952)
* The Call to Arms (1954)
* The Sound of the Trumpet (1956)
* Åndens sverd (1958)
* The Sign of the Cross (1960)
* Livets krone (1962)
* Verdens lys (1964)
* Guds herlighet (1966)
* The Triumph of Christ (1968)
Noveller:
* "Drømmen" (1910)
* "The Phantom Ship" (1911)
* "The Secret of the Moor" (1912)
* "The Haunted House" (1913)
* "Varulven" (1914)
* "Vampyren" (1915)
* "Ghost of Glamis Castle" (1916)
* "Den usynlige mannen" (1917)
* "The Devil's Bargain" (1918)
* "The Phantom of the Opera" (1919)
* "Mumiens forbannelse" (1920)
* "Saken om den savnede arvingen" (1921)
* "Mysteriet med det låste rommet" (1922)
* "The Ghost Train" (1923)
* "Mannen som forsvant" (1924)
* "Kvinnen i hvitt" (1925)
* "The Hound of the Baskervilles" (1926)
* "Den svarte katten" (1927)
* "The Tell-Tale Heart" (1928)
* "The Pit and the Pendulum" (1929)
* "The Masque of the Red Death" (1930)
* "Mordene i Rue Morgue" (1931)
* "Mysteriet om Marie Roget" (1932)
* "The Gold-Bug" (1933)
* "The Purloined Letter" (1934)
* "Descent into the Maelström" (1935)
* "A Tale of Two Cities" (1936)
* "The Prisoner of Zenda" (1937)
* "Greven av Monte Cristo" (1938)
* "De tre musketerer" (1939)
* "The Hunchback of Notre Dame" (1940)
* "The Phantom of the Opera" (1941)
* "Les Misérables" (1942)
* "Den guddommelige komedie" (1943)
* "The Odyssey" (1944)
* "Iliaden" (1945)
* "Aeneiden" (1946)
* "Metamorphoses" (1947)
* "Heroides" (1948)
* "Ars Amatoria" (1949)
* "Fasti" (1950)
* "Amores" (1951)
* "Tristia" (1952)
* "Svarte diamanter" (1898)
* "Ballads of Blue-Water" (1901)
* "Sangbæreren" (1910)
* "Livets harpe" (1920)
* "Sanger fra Sørlandet" (1930)
* "The Quest of the Golden Lotus" (1898)
* "The Green Isle of Erin" (1910)
* "The Magic Rose" (1920)
* "The Enchanted Land" (1930)
* "The Quest for the Holy Grail" (1940)
* "The City of the Sun" (1950)
* "Diana og den hellige gral" (1960)
* "Sverdet i steinen" (1970)
* "Historien om Buddha" (1980)
* "Jesu Kristi liv" (1990)
Faglitteratur:
* The Life of St. Francis of Assisi (1909)
* The Life of St. Teresa of Avila (1910)
* The Life of St. John of the Cross (1911)
* The Life of St. Ignatius of Loyola (1912)
* The Life of St. Francis de Sales (1913)
* The Life of St. Vincent de Paul (1914)
* The Life of St. Philip Neri (1915)
* The Life of St. Charles Borromeo (1916)
* The Life of St. Thomas Aquinas (1917)
* The Life of St. Albert the Great (1918)
* The Life of St. Bonaventure (1919)
* The Life of St. Benedict (1920)
* The Life of St. Bernard of Clairvaux (1921)
* The Life of St. Francis of Paola (1922)
* The Life of St. Anthony of Padua (1923)
* The Life of St. Louis of Toulouse (1924)
* The Life of St. Stanislaus Kostka (1925)
* The Life of St. Aloysius Gonzaga (1926)
* The Life of St. John Berchmans (1927)
* The Life of St. Robert Bellarmine (1928)
* The Life of St. Edmund Campion (1929)
* The Life of St. Philip Howard (1930)
* The Life of St. Robert Southwell (1931)
* The Life of St. Henry Morse (1932)
* The Life of St. John Ogilvie (1933)
* The Life of St. Margaret Clitherow (1934)
* The Life of St. Anne Line (1935)
* The Life of St. John Roberts (1936)
* The Life of St. John Wall (1937)
* The Life of St. Alban Roe (1938)
* The Life of St. Edward Walpole (1939)
* The Life of St. Thomas Garnet (1940)
* The Life of St. Anne Pollard (1941)
* The Life of St. Margaret Ward (1942)
* The Life of St. John Kemble (1943)
* The Life of St. John Southworth (1944)
* The Life of St. Alexander Briant (1945)
* The Life of St. John Duckett (1946)
* The Life of St. John Almond (19