- In Search of Valor
- In Secret Service
- In Self Defense
- In Self-Defense
- In Service to the Senator
- In Shadow
- In Shadow: A Novel
- In Shadowland
- In Shamrock Shadows
- In Shanghai Alley
- In Sheep’S Clothing
- In Shining Armor
- In Sippenhaft
- In Six Days: A Tale of Family, Religion, and Sabotage
- In Six Weeks’ Time: An Emily Lewis Mystery
- In sneeu geskryf
- In Spite of it All
- In Strange Company
- In Strange Worlds
- In Strictest Confidence
- In stürmischer Nacht
- In Testament
- In Teufels Küche
- In Teuffels Küche
- In that Hour of Despondency
- In the Arms of the Sea
- In The Attic
- In the Bag
- In the Bear Cave
- In the Belly of the Bell-Shaped Curve
- In the Bleak Midwinter
- In The Bleak Midwinter: A Special Agent Constance Mandalay Novel
- In The Blink Of An Eye
- In The Blood
- In the Blood
- In the Blood of Justice
- In the Cage
- In the Canyons of Shadow and Light
- In the Cards
- In the Cards
- In the Clearing
- In the Clinch: A Kira Brightwell Novel
- In The Closed Room
- In the Clutches of El Diablo
- In the Cold Dark Ground
- In the Company of Evil
- In the Company of Fools
- In The Company of Ghosts
- In the Company of Killers
- In the Company of Liars
- In the Company of the Courtesan
- In the Company of Witches
- In the Company of Wolves
- In The Country Dark
- In the Course of Time: Book Three
- In the Course of Time: Book Two
- In the Court
- In the Crossfire
- In the Court
- In the Crossfire
- In the Crosshairs
- In The Crosshairs
- In the Crosshairs
- In the Cut
- In The Dark
- In the Dark
- In the Dark
- In The Dark
- In the Dark
- In the Dark - Keiner weiß, wer sie sind
- In The Dark of The Night
- In the Dark of the Night
- In the Dark of the Sun
- In The Day, Darkness: A Novel
- In the Days of Dread
- In the Days of Giants: A Book of Norse Tales
- In the Dead of Night
- In The Dead Of Night
- In the Dead of Night
- In the Dead of Night (Vol. 1-3)
- In the Dead of Summer
- In the Dead of Winter
- In The Deep
- In the Defendant's Chair
- In the Den of the English Lion
- In the Driver's Seat