- Mr. Vanish and the Thin Air
- Mr. X
- Mr.Del
- Mroczny Labirynt
- Mrs Bennett mourut à l'aube
- Mrs Bubbles' Double Trouble
- Mrs Goodwine
- Mrs Sinclair's Suitcase
- Mrs. Ames
- Mrs. Cliff's Yacht
- Mrs. Hazel, May I?
- Mrs. Jones and the Midas Train: A Jazz-Age Decopunk Fantasy
- Mrs. Raffles
- Mrs. Tremain
- Ms Patriot: No Holds Barred
- Ms. Anna
- Ms. Emily, The Ignis Fatuus Ploy
- Ms. Grimsley
- Ms. Moore Goes to Washington
- Ms. Wilder's Package
- Much Ado About Lewrie
- Mucha
- Muchacho en llamas
- Muckrakers & Minotaurs
- Mud and Glass
- Mudbound
- Mudcat the Pirate
- Muddled
- Muerte blanca (Archivos NUMA 4)
- Muerte de reyes
- Muerte en Absalón
- Muerte En El Teatro
- Muerte entre bastidores y otros cuentos macabros
- Muertes en el río (Colección Oeste)
- Muffled Shots
- Mufti
- Mujeres
- Mule Train
- MULP: Sceptre of the Sun #1
- MULP: Sceptre of the Sun #2
- MULP: Sceptre of the Sun #2
- MULP: Sceptre of the Sun #3
- Multi venerunt, или Многие пришли
- Multiplayer
- Multiple Threats
- Mundane Adventures
- Mundele
- Mundo Maya: Revenge of the Jaguar King
- Mundo Paralelo
- Mundos de arena
- Mundos de Dragões
- Mundos superiores
- Mundus furibundus
- Munich
- Muoio e torno
- Muqaabil The Saga
- Murat
- Murder and Other Unnatural Disasters
- Murder Anonymous
- Murder at Alton Manor
- Murder at Bayside
- Murder at Camelot or Tales of Sir Tristram
- Murder at Derivale
- Murder at Morgan Park
- Murder at Ring 5: A Mathias Dog Show Mystery
- Murder at the Villa Museum
- Murder At Yew Haven
- Murder Book
- Murder By Proy
- Murder Could Not Kill
- Murder Creek
- Murder For Love!
- Murder Goes To A Reunion
- Murder in Any Degree
- Murder in Costa Rica
- Murder in Maspalomas
- Murder in Panama
- Murder in Stopover
- Murder in the Amazon
- Murder in the Bermuda Triangle
- Murder in the Cards
- Murder in the City
- Murder in the Family
- Murder in the Gunroom
- Murder in the Mist
- Murder In The Outback
- Murder in the Parador
- Murder in the Time of Covid
- Murder in Wax
- Murder in White Sands
- Murder Is Just The Warning
- Murder is Just the Warning
- Murder Made Casual
- Murder Made Necessary
- Murder Most Fowl
- Murder Must Advertise. A Detective Story
- Murder Mysteries: Hidden Secret
- Murder of a Missing Man
- Murder on a Two Lane Road
- Murder on Aconcagua
- Murder on Halfaday Creek
- Murder on Kregen [Dray Prescot #51]
- Murder on Puncak Jaya
- Murder On The Back Burner
- Murder On the Cappella
- Murder On The High 'C'
- Murder on the Mesa
- Murder on the Mont
- Murder on the Street of Years
- Murder on the Third Try
- Murder on Vinson Massif
- Murder One; The Legend of Crossbow Charley
- Murder Returns To Saratoga
- Murder Song
- Murder To A Slow Jazz Beat Part One
- Murder To A Slow Jazz Beat Part Two
- Murder to Order
- Murder Under the Bridges of Venice, Italy