- Secret Heat [Men of Iron Horse 10]
- Secret Heir
- Secret Heirs of Powerful Men
- Secret History of a Good Girl
- Secret Identity
- A Secret in Salem
- Secret Infatuation
- Secret Intentions
- Secret Lies
- Secret Life
- Secret Lives of Cheating Wives
- Secret Lives of Husbands and Wives
- Secret Lives of Second Wives
- Secret Love
- Secret Love - Book Four
- Secret Love - Book Three
- Secret Love - Book Two
- Secret Love - Complete Series
- Secret Lover
- SECRET LOVER
- Secret Lovers
- Secret Match
- Secret Millionaire for the Surrogate
- Secret Mistress
- Secret Montana
- Secret Nature
- Secret Nights at Nine Oaks
- Secret Nights with a Cowboy
- Secret North
- Secret Notte
- SECRET OBSESSION
- Secret of Deadman's Coulee
- Secret of the Wolf
- Secret Paradise
- Secret Passions : Threesome MFM Romance Collection
- Secret Pleasure
- Secret Pleasure: Part 1
- Secret Pleasure: Part 2
- Secret Pleasure: Part 3
- Secret Pressure
- Secret Prince, Instant Daddy!
- Secret Rendezvous
- SECRET Revealed
- Secret Romeo
- Secret Royal
- Secret Santa 2
- Secret Santa Sir
- Secret Santa's Rundown Sleigh
- Secret Sauce
- Secret Seduction
- Secret Seductions
- Secret Series 1-3
- Secret Series Book 4-6
- Secret Service Cyborg
- SECRET SERVICE DAD
- Secret Shades Aroused
- Secret Silver Nights
- Secret Singer: A Short Story
- Secret Sins - Stärker als das Schicksal
- Secret Smile
- Secret Society Girl
- Secret Spirit Guardians of Santa Fe
- Secret sur un scandale
- Secret Surprise
- SECRET SURRENDER
- Secret Surrender – A Harlow Series Book
- Secret Tastes
- Secret Things
- Secret Twins for the Texan
- Secret Valentine
- SECRET WEDDING
- Secret Wedding: BWWM
- Secret Words
- Secret Yearnings
- Secret Words
- Secret Yearnings
- Secret's Kiss: Securities International Book 4
- Secret-Agent Sheik
- Secretaria de día, amante de noche
- Secretaria y amante
- Secretarial Wars
- Secretary for the Billionaire
- Secretary With Benefits for the Billionaire
- Secrete si speranțe
- Secretly
- Secretly Craved
- Secretly Desired
- Secretly in Love
- Secretly in Love
- Secretly Inn Love
- Secretly Mated
- Secretly Needed
- Secretly Scandalous
- Secretly Smitten
- Secretly Wild
- SECRETLY YOURS
- Secreto amargo
- Secreto culpable
- Secreto de amor
- Secreto de mujer
- Secreto de seducción
- Secreto de una noche
- Secreto desvelado
- Secreto entre hermanastros
- Secreto familiar
- Secreto mortal
- Secreto oculto
- Secreto siciliano
- Secreto vergonzoso
- Secretocracy