| Series | | Books |
| |
| Mark Hardwicke | | (ss) (2011) |
| | | (ss) (2011) |
| | | (ss) (2011) |
| | | (2017) |
| |
| Other | | I'll Be Dead For Christmas [Partners in Crime] (2007) |
| | | Boy Meets Body [Partners in Crime] (2007) |
| | | The Ghost Wore Yellow Socks (2008) |
| | | Death of a Pirate King [Adrien English] (2008) |
| | | Mexican Heat [Crimes & Cocktails] (2008) |
| | | Footsteps in the Dark [Partners in Crime] (2008) |
| | | Committed to Memory [Partners in Crime] (2009) |
| | | Strange Fortune (2009) |
| | | The Art of Dying [Partners in Crime] (2009) |
| | | The Dark Tide [Adrien English] (2010) |
| | | Fair Game [All's Fair] (2010) |
| | | Somebody Killed His Editor [Holmes & Moriarity] (2010) |
| | | Snowball in Hell [Doyle & Spain] (2011) |
| | | Mummy Dearest [XOXO Files] (2011) |
| | | Old Poison [Dangerous Ground] (2011) |
| | | All She Wrote [Holmes & Moriarity] (2011) |
| | | The Hell You Say [Adrien English] (2011) |
| | | The White Knight [Dark Horse] (2012) |
| | | Blood Heat [Dangerous Ground] (2012) |
| | | A Vintage Affair (2012) |
| | | The Darkling Thrush (2012) |
| | | Dangerous Ground [Dangerous Ground] (2012) |
| | | Fatal Shadows [Adrien English] (2012) |
| | | A Dangerous Thing [Adrien English] (2012) |
| | | Stranger Things Have Happened [Adrien English] (2013) |
| | | Dead Run [Dangerous Ground] (2013) |
| | | Kick Start [Dangerous Ground] (2013) |
| | | Blood Red Butterfly (2013) |
| | | This Rough Magic [Shot in the Dark] (2013) |
| | | Winter [Haunted Heart] (2013) |
| | | Merry Christmas, Darling [Holiday Codas] (2013) |
| | | Fair Play [All's Fair] (2014) |
| | | Stranger on the Shore (2014) |
| | | The Boy With The Painful Tattoo [Holmes & Moriarity] (2014) |
| | | Short Stories (2015) |
| | | Murder in Pastel (2015) |
| | | Jefferson Blythe, Esquire (2015) |
| | | The Mermaid Murders [Art of Murder] (2016) |
| | | So This is Christmas [Adrien English] (2016) |
| | | The Curse of the Blue Scarab (2016) |
| | | If Only in My Dreams (2017) |
| | | Christmas Waltz [Holiday Codas] (2017) |
| | | Fair Chance [All's Fair] (2017) |
| | | The Monet Murders [Art of Murder] (2017) |
| | | Seance on a Summer's Night (2018) |
| | | Murder Takes the High Road (2018) |
| | | In Other Words... Murder [Holmes & Moriarity] (2018) |
| | | The Magician Murders [Art of Murder] (2018) |
| | | The Monuments Men Murders [Art of Murder] (2019) |
| | | I Buried a Witch [Bedknobs and Broomsticks] (2019) |
| | | Mainly by Moonlight [Bedknobs and Broomsticks] (2019) |
| | | Murder at Pirate's Cove [Secrets and Scrabble] (2020) |
| | | Blind Side [Dangerous Ground] (2020) |
| | | Secret at Skull House [Secrets and Scrabble] (2020) |
| | | Bell, Book and Scandal [Bedknobs and Broomsticks] (2021) |
| | | Body at Buccaneer's Bay [Secrets and Scrabble] (2021) |
| | | Scandal at the Salty Dog [Secrets and Scrabble] (2021) |
| | | Mystery at the Masquerade [Secrets and Scrabble] (2021) |
| | | The Movie-Town Murders [Art of Murder] (2022) |
| | | Death at the Deep Dive [Secrets and Scrabble] (2022) |
| | | Hide and Seek (2022) |
| | | Lament at Loon Landing [Secrets and Scrabble] (2023) |
| | | 44.1644 North (2023) |
| | | Puzzle for Two (2023) |
| | | The 12.2 Per-Cent Solution [Holmes & Moriarity] (2024) |
| | | Hex in the City [Bedknobs and Broomsticks] (2024) |
| |