- Harlequin’s Costume
- Harlequin’s Lane
- Harley House
- Harley Rushes In (Book 2 of the Blue Suede Mysteries)
- Harley Street
- Harlot
- Harlot Malediction
- Harlot's Ghost
- Harlot's Moon: Book Three of the Robert Payne Mystery Series
- Harm
- Harm and Hammer
- Harm Done
- Harm None: A Rowan Gant Investigation
- Harm's Way
- Harmaan miehen salaisuus
- Harmadik sírhant
- Harmful Correlation
- Harmful Habits
- Harmless
- Harmonia zbrodni
- Harmonic Deception
- Harmonica & Gig
- Harmony
- Harmony In Flesh and Black
- Harmynten
- Harm’s Reach
- Harold Cranston's Final Trip
- Harold Nickel's Last Dime
- Harold the Klansman
- Harold Tromball and the Case Of the Missing Train
- Harper & Hicks
- Harper Connelly Mysteries Quartet
- Harper Hunt and Dirty Betty
- Harper's War
- HARPOONED
- Harpy
- Harpy Redux
- Harraga
- Harraga · Im Netz der Menschenhändler
- Harras
- Harraga · Im Netz der Menschenhändler
- Harras
- Harrian mezua
- Harriet Anne Marshall and the Devils Violin
- Harriets Coup
- Harriets Plan
- Harris Estate
- Harrison's Heart
- Harrison, Speculation and Sociopaths
- Harrison, Truth and Lies
- Harrow
- Harrow Lake
- Harrowed
- Harrowing Hats
- Harrowing Part 1: The Murders
- Harrowing Part 2: The Kidnap
- Harrowing Part 3: The Trapped
- Harrows Gate
- Harry