| Series | | Books |
| |
| Adelaide Becket | | (2021) |
| | | (2021) |
| | | (2021) |
| | | (2021) |
| |
| Other | | Chronicles of the Lost Years [Sherlock Holmes] (1999) |
| | | The Case of the Reluctant Agent [Sherlock Holmes] (2001) |
| | | Silent Knight (2004) |
| | | Heart of Vengeance [Jewells of Tomorrow] (2004) |
| | | Diana By the Moon [Jewells of Tomorrow] (2004) |
| | | Ningaloo Nights [Go-get-'em Women] (2009) |
| | | Bannockburn Binding [Beloved Bloody Time] (2011) |
| | | Fatal Wild Child [Romantic Thrillers Collection] (2011) |
| | | Delly's Last Night [Go-get-'em Women] (2012) |
| | | The Royal Talisman [Go-get-'em Women] (2012) |
| | | Byzantine Heartbreak [Beloved Bloody Time] (2012) |
| | | Vivian's Return (2012) |
| | | An Inconvenient Lover (2012) |
| | | Dead Again [Romantic Thrillers Collection] (2012) |
| | | Dead Double [Romantic Thrillers Collection] (2012) |
| | | Forbidden (with Julia Templeton) [Scandalous Sirens] (2012) |
| | | Dangerous Beauty (with Julia Templeton) [Scandalous Sirens] (2012) |
| | | The First Trinity (2013) |
| | | Romani Armada [Beloved Bloody Time] (2013) |
| | | Terror Stash [Romantic Thrillers Collection] (2013) |
| | | The Branded Rose Prophecy (2014) |
| | | Wait (novelette) [Time Twist Tales] (2014) |
| | | Faring Soul [Interspace Origins] (2015) |
| | | Perilous Princess [Scandalous Sirens] (2015) |
| | | Spartan Resistance [Beloved Bloody Time] (2015) |
| | | Viennese Agreement (novelette) [Beloved Bloody Time] (2015) |
| | | 5,001 [Endurance] (2015) |
| | | Greyson's Doom [Endurance] (2016) |
| | | Yesterday's Legacy [Endurance] (2016) |
| | | Promissory Note [Endurance] (2016) |
| | | Xenogenesis [Endurance] (2016) |
| | | Interspace Origins [Interspace Origins] (2016) |
| | | Cat and Company [Interspace Origins] (2016) |
| | | Varkan Rise [Interspace Origins] (2016) |
| | | Celtic Crossing [Beloved Bloody Time] (2017) |
| | | Sherlock Boxed In [Sherlock Holmes] (2017) |
| | | Prisoner of War [Vistaria Has Fallen] (2017) |
| | | Vistaria Has Fallen [Vistaria Has Fallen] (2017) |
| | | Marriage Of Lies [Scandalous Scions] (2017) |
| | | Valor of Love [Scandalous Scions] (2017) |
| | | Soul of Sin [Scandalous Scions] (2017) |
| | | Junkyard Heroes [Endurance] (2017) |
| | | Suns Eclipsed [Indigo Reports] (2017) |
| | | Evangeliya [Endurance] (2017) |
| | | Skinwalker's Bane [Endurance] (2017) |
| | | Quiver and Crave [Endurance] (2017) |
| | | Flying Blind [Indigo Reports] (2017) |
| | | Rose of Ebony [Scandalous Scions] (2017) |
| | | But Now I See [Indigo Reports] (2017) |
| | | New Star Rising [Indigo Reports] (2017) |
| | | Born of No Man [Once and Future Hearts] (2018) |
| | | Pendragon Rises [Once and Future Hearts] (2018) |
| | | Dragon Kin [Once and Future Hearts] (2018) |
| | | V-Day [Vistaria Has Fallen] (2018) |
| | | Casualties of War [Vistaria Has Fallen] (2018) |
| | | Freedom Fighters [Vistaria Has Fallen] (2018) |
| | | Hostage Crisis [Vistaria Has Fallen] (2018) |
| | | Mask Of Nobility [Scandalous Scions] (2018) |
| | | Law Of Attraction [Scandalous Scions] (2018) |
| | | Veil of Honor [Scandalous Scions] (2018) |
| | | Rules of Engagement [Scandalous Scions] (2018) |
| | | Season of Denial [Scandalous Scions] (2018) |
| | | Queen of Hearts [Scandalous Scions] (2019) |
| | | Worlds Beyond [Indigo Reports] (2019) |
| | | Inside Man [Project Kobra] (2019) |
| | | Hunting The Kobra [Project Kobra] (2019) |
| | | Battle of Mount Badon [Once and Future Hearts] (2019) |
| | | High King of Britain [Once and Future Hearts] (2019) |
| | | War Duke of Britain [Once and Future Hearts] (2019) |
| | | Degree of Solitude [Scandalous Scions] (2019) |
| | | Ashes of Pride [Scandalous Scions] (2019) |
| | | Risk of Ruin [Scandalous Scions] (2019) |
| | | Year of Folly [Scandalous Scions] (2019) |
| | | Abduction of Guenivere [Once and Future Hearts] (2020) |
| | | Downfall of Cornwall [Once and Future Hearts] (2020) |
| | | Heart Strike [Project Kobra] (2020) |
| | | His Parisian Mistress [Scandalous Family--The Victorians] (2020) |
| | | Her Rebellious Prince [Scandalous Family--The Victorians] (2020) |
| | | Their Foreign Affair [Scandalous Family--The Victorians] (2020) |
| |