- Marked Mates [Dream Marked 4]
- Marked Prince
- Marked: A YA Paranormal Romance Novel (Volume 11 of the Reflections Books)
- Markiert um Mitternacht
- Marking Melody (Ashland Pride Three)
- Marking Mikel
- Marking Time
- Marks of Power
- Markus
- Marlee's Dom
- MARLIE'S MYSTERY MAN
- Marlowe's Ghost
- Maroon #5
- Marooned [Wicked Missions 2]
- Marquée
- Marquée à minuit
- Marqués - Tome 1
- Marriage
- Marriage Claws
- Marriage of Heaven and Hell
- Married
- Married for her Beauty: Or A Bitter Atonement
- Married Life: The True Romance
- Married to Her Master
- Married to Mars
- Married to the Vampire King
- Married to the Wolfman
- Marry Me
- Marrying a Mate: MM Omegaverse Mpreg Romance
- Marrying A Monster
- Marrying an Alien Pop Star
- Marrying Dracula
- Marrying Her
- Marrying Their Dream Weaver [Their Dream Weaver 3]
- Mars
- MARS
- Mars
- Mars Heat
- Mars Ho!
- Mars Needs MILFs
- Marshall's Guard
- Marshall's Law
- Martha's Bonfire Night: A Shadow Coven Short Story
- Martian Conquest: The Adventures of Mari Shu, Vol 2
- Martini Moon
- Marty Roberts
- Marty's Horrible, Terrible, Very Bad Day
- Marvin's World of Deadheads
- Mary and the Bear
- Mary Anerley: A Yorkshire Tale
- Mary Jane Married: Tales of a Village Inn
- Mary of Marion Isle
- Mary Seaham (Complete)
- MARY SHELLEY Premium Collection: Novels & Short Stories, Plays, Travel Books & Biography
- Mary Shelley's Frankenstein (Illustrated)
- Maryam
- Marzio's Revenge
- MASANGO La Voie du Gladiateur
- Maschere Il Re Dei Fae
- Mascot
- Mask of Death
- Mask Of Fire
- Mask of Fire: A Red Hot Treats Story
- Mask of Gold
- Mask of the Macabre
- Mask of the Shaman
- Masked by Moonlight
- Masked Pain
- Maskenball
- Maskers
- Mason
- Mason Returns to His Mate [DeWitt's Pack 8]
- Mason's Fate
- Mason's Regret
- Masque de fer
- Masque of Satan
- Masque: Forge (A Gaston Leroux Phantom of the Opera Romance Series) Book two
- Masque: LeBeque (A Gaston Leroux Phantom of the Opera Romance Series) Book Three
- Master Delacroix
- Master Me [Masterson 1]
- Master of Blackmoor
- Master of Crows
- Master of Desire
- Master of Dragons
- Master of Ecstasy (Mackenzie Vampires, Book 1)
- Master of Fate
- Master of Fire
- Master of Ghouls
- Master of Her Heart
- Master of Honor
- Master of Magic
- Master of Passion
- Master of Seduction
- Master of Smoke
- Master Of Storms
- Master of Swords
- Master of the Deep
- Master of the Fleet
- Master of the Moon
- Master of the Night
- Master of Valor
- Master Sergeant Polar Bear
- Master Unchained
- Master Wolf
- Master's Blood (The Shifter Chronicles 6)
- Master's Bride: Blood Brood Book 2 (Vampire Romance)
- Master's Gift
- Master, I Am Yours
- Mastered By a Wolf
- Mastered by Her Mates
- Mastered by Love
- Mastered by the Berserkers
- Mastered by the Genie
- Mastered by the Zandians
- Mastered by Three Panthers
- Mastered Teagan
- Mastering His Pet
- Mastering Meredith
- Mastering Vidal
- Masterpieces of Edgar Allan Poe
- Masterpieces of Mystic-Humorous
- Masters of Illusion - Book 1 & 2
- Masters of Seduction
- Masters of Temptation [Temptation, Wyoming 6]
- Masters of the Cats: Collaring the Saber-Tooth
- Masters of the Flame: The Complete Trilogy