- M Issue 2
- M Issue 3
- Maanlicht
- Macabre Justice
- MacTavish & Scott - Das rätselhafte Medaillon
- MacTavish & Scott - Der verschwundene Gärtner
- MacTavish & Scott - Ein Cupcake für den Mörder
- MacTavish & Scott - Eine verhängnisvolle Erpressung
- MacTavish & Scott - Gefährliche Lügen
- MacTavish & Scott - Tod eines Künstlers
- Mad Rush
- Madame la baronne est servie
- Madame Lefèvre et sa servante
- Mademoiselle Sherlock
- Maelstrom: The Downing of Eagle21
- Maggy Thorsen Mysteries Box Set 1-3
- Magic City
- Maigret e il vecchio pittore
- Maintien du désordre
- Mais aventuras de Arsène Lupin
- Male/Male Mystery and Suspense Box Set: 6 Novellas
- Malice Masterpieces 4
- Malicious Acts
- Malicious Mysteries
- Mallachd Dean
- Mama Tried: Crime Fiction Inspired by Outlaw Country Music
- Mama: a short story
- Mammoth Book Of Sherlock Holmes Abroad
- Man on a Mission
- Mandy Dru Mysteries
- Manhattan Mayhem
- Maniobra de evasión - Episodio 1
- Maniobra de evasión - Episodio 1 y 2
- Maniobra de evasión - Episodio 3
- Maniobra de evasión - Episodio 4
- Maniobra de evasión - Episodio 5
- Maniobra de evasión - Episodio 6
- Mannheimer Karussell: Kurpfalz-Krimi
- Manuscrito hallado en una botella
- Marc Bigle - Devant le coffre-fort
- Marc Bigle - L'affaire du yacht « Poseidon »
- Marc Bigle - L'héritage de Lord Cladstone
- Marc Bigle - La mort de Marc Bigle
- Marc Bigle - Le sachet de Joyaux
- Marc Bigle - Puisque je suis mort...
- Margaritas, Marzipan, and Murder
- Mariage chimique
- Markers
- Married People
- Married To Murder
- Martin Hewitt, Investigator
- MARY ELIZABETH BRADDON Ultimate Collection: Mystery Novels, Victorian Romances & Supernatural Tales
- Mary, Mary, Shut the Door
- Masque Of Deceit
- Masterpieces of Edgar Allan Poe
- Masterpieces of Mystery
- Masterpieces of Mystery Detective
- Masterpieces of Mystery: Detective Stories
- Masterpieces of Mystery: Riddle Stories
- Masthead
- Materia grigia
- Mathewson Media Box Set: The First Five Anna Harris Novels
- Matthew Hawkwood Thriller Series Books 1-3
- Maturità
- Maurice Renard - Oeuvres
- Maxwell Marlowe, Private Eye...Get Charlene!
- Maxwell Marlowe, Private Eye: Murder In Maroochydore
- Mayhem and Matrimony
- Mayhem At The Mansion #3
- Maynard Soloman vs. The Kidney Thieves (Funny Detective Stories #8)
- Meadowlark
- Meat City on Fire and Other Assorted Debacles
- Meat Matters (Murder Mysteries in Minutes)
- MEDIUM Historia de un corazón sensible
- Medusa
- Medusa (Deutsche Version)
- Meet Jimmy Strange
- Meeting with Fate
- Meg Gardiner 3-Book Thriller Collection
- Mehr seltsame Geschichten
- Mein Killer, dein Killer: Drei Krimis
- Meine 8 besten Thriller im Oktober 2021: Krimi Paket
- Mein Killer, dein Killer: Drei Krimis
- Meine 8 besten Thriller im Oktober 2021: Krimi Paket
- Meine Kriminalgeschichten
- MELVILLE DAVISSON POST Ultimate Collection: 40+ Mysteries, Detective Stories & Adventure Novels
- Members
- Memorias de Sherlock Holmes
- Memory of a Murder
- Memphis Noir
- Memórias de Sherlock Holmes
- Merah (Short Story)
- Merchants of Menace
- Merry Wrath Mysteries Boxed Set Vol. I (Books 1-3)
- Merry Wrath Mysteries Boxed Set Vol. II (Books 4-6)
- Merry Wrath Mysteries Boxed Set Vol. III (Books 7-9)
- Merry Wrath Mysteries Boxed Set Vol. IV (Books 10-12)
- Merry Wrath Mysteries Boxed Set Vol. V (Books 13-15)
- Merry Wrath Mysteries Boxed Set Vol. VI (Books 16-18)
- Mes parents sont des tueurs
- Messed Up
- Messieurs... la cour !
- Metastasi
- Meurtre à Baumugnes
- Meurtres sans meurtrier
- Meurtres sur la colline - L'assassinat de la Colombe
- Mexico Gamble
- MIAMI C.S.I.
- MIAMI D.O.A.
- MIAMI P.I.
- Michelle Indaga
- Microcuentos de terror
- Microrelatos de misterio
- Midnight Hour
- Midwest Midwinter
- Milano noir. Le indagini dell'ispettore Battiston (Vol. I)
- Mile 1 - Last Guns of the Mississippi
- Mini-pouce
- Minnesota Not So Nice - Eighteen Tales Of Bad Behavior
- Minor Characters
- Minutes Of Mayhem
- Minuti contati