- Uncommon Life
- Uncommonly Tidy Poltergeists
- Uncompromising Honor
- Unconditional Love
- Unconditional Love is a Lion
- Unconquerable Sun
- Unconquered Son
- Unconstant Love
- Uncontainable
- Uncontrollable Burn
- Unconventional in San Diego
- Uncovering Truths: Time's Tempest Lost Chapter 4
- Uncrossed Paths
- Und Altaia brannte
- Und deine Welt, John?
- Und der Spaß geht in Venedig weiter
- Und ewig lockt der Vampir
- Und führet mich zu stillen Wassern
- Und Pestilence macht drei
- Und unter den Birken ein Wasser
- Und wenn die Mahner doch Recht hatten?
- Und übrigens noch was ...
- Undead - tome 2
- Undead Alchemist
- Undead and Done
- Undead and Unappreciated
- Undead and Undermined
- Undead and Uneasy
- Undead and Unemployed
- Undead And Unfinished
- Undead and Unfinished
- Undead and Unforgiven
- Undead and Unpopular
- Undead and Unreturnable
- Undead and Unstable
- Undead and Unsure
- Undead and Unwary
- Undead and Unwed
- Undead and Unwelcome
- Undead and Unworthy
- Undead at Groom Lake
- Undead Chaos
- Undead Dragon Hunter
- Undead Genesis: Zombie
- Undead Island (Escape - Vol. 3)
- Undead Island (High Tide - Vol. 1)
- Undead Island (The Lighthouse - Vol. 2)
- Undead Island: The Complete Collection
- Undead Isle: la isla de los no muertos
- Undead L.A. 1: LAX
- Undead on Arrival
- Undead Philosophy 101
- Undead Reckoning
- Undead Tales: 15 Thrilling Zombie Stories
- Undead to the World
- Undead Weapons
- Undead Worlds
- Undead Worlds 2
- Undead Worlds 3
- Undead: Vampire Rising (Lust for Blood)
- Undeadly
- Undeadly Sinful: A Jeana Keller, Killer Vamp--er, Vampire Killer--Story
- Undeath and Taxes
- Undeath Ascendant: A Vampire Counts Omnibus
- Undeclared
- Undeclared War
- Undeniable
- Under
- Under a Breeding Moon (Shapeshifter Breeding Erotica)
- Under A Celtic Moon (2 Tales of Fantasy Romance)
- Under a Cloven Moon: The Satanta Run
- Under a Collapsing Sky
- Under a Copper Sun
- Under a Crescent Moon
- Under a Cretaceous Sun
- Under a Fallen Sun
- Under a Graveyard Sky
- Under A Hunter's Moon (Shadows Over Seattle: Prequels One)
- Under a Graveyard Sky
- Under A Hunter's Moon (Shadows Over Seattle: Prequels One)
- Under a Raven's Wing
- Under A Shady Sky
- Under A Spell
- Under a Vampire Moon
- Under a Veil of Gods
- Under a Wild and Darkening Sky
- Under a Winter Sky
- Under an Open Sky
- Under Arctic Ice
- Under Calcutta
- Under Dark Sky Law
- Under den döende stjärnan
- Under Different Stars
- Under Dirt, Water, and Fire
- Under Fallen Stars
- Under Fire
- Under Foot
- Under Fyre
- Under Gravity's Dust
- Under Her Brass Corset
- Under Her Protection
- Under Her Protection: Stories of Women to the Rescue
- Under Her Spell
- Under His Influence
- Under His Spell (Vampire Desires #2)
- Under jorden
- Under Lock and Key
- Under My Skin (Bookburners Season 1 Episode 8)
- Under My Thumb
- Under New Leadership
- Under One Banner
- Under Orders: The Story of a Young Reporter
- Under Plum Lake
- Under Raven's Wing
- Under Roswell
- Under Shadows