- M. R. James: The Complete Supernatural Stories (30+ tales of horror and mystery: Count Magnus, Casti...
- Mabel Stewart and the Wolf's Cane
- Macabre Dairies
- Macbeth (suivi de La tempête) [édition intégrale revue et mise à jour]
- Machowski's Watch
- MacIan's Gift
- Mack Maloney's Haunted Universe
- Maculada Odete
- Mad Flashes
- Mad Men
- Madam Crowl's Ghost and the Dead Sexton
- Madame Sinclair’s Pupil
- Made In Blood: Tales of Terror
- Made In Hell
- Madeleine's Ghost
- Madness in Brewster Square
- Mafia vs. Ghosts
- Maggie Get Your Gun
- Maggie Goes to the Beach: A Story of Life After Death
- Maggots
- Magic and Murder Among the Dwarves
- Magic Terror
- Magic Unbound
- Magical Memories
- Maginot
- Magnolia Magick
- Magpie Hall
- Majesty
- Make Me A Corpse
- Making Amends
- Maledicció a la casa de colònies
- Malediction
- Malevolent Gateway (S.P.I.R.I.T. 2)
- Malice: A Supernatural Thriller
- Malédiction
- Mansion
- Manuscrito encontrado en Zaragoza
- Mar negro
- Maria's Curse
- Maria's Curse
- Marielle's Witch
- Marife And The Ghosts
- Marjorie
- Marrow Bone Road and Other Tales
- Martuk ... the Holy: Proseuche
- Marvin's World of Deadheads
- Mary
- Mary Rose
- Mary Shelley's short stories
- Mary Twelves
- Massachusetts Calling - A Compilation of Short Stories, Recipes, Poetry, Memories, and Histories
- Master Humphrey's Clock
- Master of Darkness
- Masterpieces of Mystery: Mystic-Humorous Stories, Ghost Stories, Riddle Stories and Detective Storie...
- Masterpieces of Mystic-Humorous
- Matanzas Moon
- Mathilde, A Woman of Circumstance
- Mavericks
- Max Starr Series: 5-Book Bundle
- May Night, or the Drowned Maiden
- Mayday Mayday Mayday
- Mazophilia
- McDowell's Ghost
- Me and the Devil
- Mean Spirit
- Mean Spirits
- Medicine for the Dead
- Medium Rare: 'Til Death Don't Us Part
- Meet Me in the Dark
- Meeting the Sunset Kid
- Megan's School Exams
- Megan's Thirteenth
- Meister Ömer und sein Muhpuckel
- Melancholy Ghost
- Melody
- Memories
- Memories Dying
- Mercury and Music
- Meredith, Sybil, and the Shadow People
- Mereret
- Merline die Nixe Das Grauen vom Wildsee
- Merrick
- Mes histoires de fantômes
- Messaggeri del mistero
- Messing With Magic
- Meurtre à Fouras
- Meus Bons Amigos
- Mi hermana Antonia
- Miasto cieni
- Michael's Rebellion
- Midnight in Your Arms
- Midnight is a Lonely Place
- Midnight Light
- Midnight Never Ends
- Midnight Symphony: Tales of the Macabre and Supernatural
- Midnight Waltz
- Midnight's Edge: The Possession
- Midnight's Edge: The Secrets of Sleepy Meadows
- Midnight's Edge: The Spirits of Sleepy Meadows
- Millville
- Mime
- Mimic (A Spear Bearer Short)
- Mind of a Mad Man
- Minion
- Ministry of Souls – Das Schattentor
- Ministry of Souls – Die Schattenarmee
- Miraculous and the Silver Man
- Miraculous, Maxim and the Silver Man
- Mirror
- Mirror Maze
- Mischief
- Misfortunes Of Mister Knack by Mike Gutowski
- Miss Abigail's Room
- Miss Marley
- Missing My Bejeweled