- Under the Tonto Rim
- Under The Tonto Rim
- Under the Tonto Rim
- Under The Tree: Reno and Zuri's First Christmas
- Under The Tuscan Sun…
- Under the Voodoo Moon
- Under The Warrior's Protection
- Under the Weeping Willow Tree: Four Historical Romances
- Under the Western Sky
- Under The Western Sky
- Under the White Roses: A Pair of Historical Romances
- Under The Wishing Star
- Under the Witches Moon
- Under the Witches' Moon
- Under the Witches' Moon: A Romantic Tale of Mediaeval Rome
- Under Their Covers [Uniformed and Smoking Hot 1]
- Under Their Protection
- Under Their Skin
- Under trekronene – erotisk novelle
- Under Two Flags (Romance Classic)
- Under Western Eyes
- Under Witch Aura
- Under Wrapped
- Under Your Scars
- Under Your Spell
- Undercity Chronicles 1
- Undercover
- Undercover Erotische Geschichte mit Audio
- Undercover - In Schwierigkeiten
- Undercover Accomplice
- Undercover Associates four-pack
- Undercover Baby
- Undercover Billionaire
- Undercover Bride
- Undercover Bridesmaid
- Undercover Bromance
- Undercover Christmas
- Undercover Colorado
- Undercover Complication (Cade Creek 23)
- Undercover Cook
- Undercover Couple
- Undercover Daddy
- Undercover Danger
- Undercover Desire
- Undercover Desire (Wright City Heartthrobs, Book 1)
- Undercover Desires
- Undercover Duke
- Undercover Engagement
- Undercover Duke
- Undercover Engagement
- Undercover Fantasy [Fantasy Resort 2]
- Undercover Games
- Undercover Groom
- Undercover Heart
- Undercover Heat [Men of Iron Horse 3]
- Undercover Husband
- Undercover In Copper Lake
- Undercover In Glimmer Creek
- Undercover In Jenns Cove
- Undercover in the CEO's Bed
- Undercover in Venice Beach
- Undercover K-9 Cowboy
- Undercover Kitty
- Undercover Küsse
- Undercover Lion
- Undercover Lover
- Undercover Lover (Erotically Yours 4)
- Undercover Lovers
- Undercover Lovers [Urban Affairs 1]
- Undercover M.d.
- Undercover Magic