| Series | | Books |
| |
| Elena Standish | | (2019) |
| | | (2020) |
| | | (2021) |
| | | (2022) |
| | | (2023) |
| |
| Other | | The One Thing More (1000) |
| | | The Cater Street Hangman [Charlotte and Thomas Pitt] (1979) |
| | | Callander Square [Charlotte and Thomas Pitt] (1980) |
| | | Paragon Walk [Charlotte and Thomas Pitt] (1981) |
| | | Resurrection Row [Charlotte and Thomas Pitt] (1981) |
| | | Rutland Place [Charlotte and Thomas Pitt] (1983) |
| | | Bluegate Fields [Charlotte and Thomas Pitt] (1984) |
| | | Death in the Devil's Acre [Charlotte and Thomas Pitt] (1985) |
| | | Cardington Crescent [Charlotte and Thomas Pitt] (1987) |
| | | Silence in Hanover Close [Charlotte and Thomas Pitt] (1988) |
| | | Bethlehem Road [Charlotte and Thomas Pitt] (1990) |
| | | The Face of a Stranger [William Monk] (1990) |
| | | Highgate Rise [Charlotte and Thomas Pitt] (1991) |
| | | A Dangerous Mourning [William Monk] (1991) |
| | | Defend and Betray [William Monk] (1992) |
| | | Fashionable Funeral (1992) |
| | | Belgrave Square [Charlotte and Thomas Pitt] (1992) |
| | | Farriers' Lane [Charlotte and Thomas Pitt] (1993) |
| | | A Sudden, Fearful Death [William Monk] (1993) |
| | | The Sins of the Wolf [William Monk] (1994) |
| | | The Hyde Park Headsman [Charlotte and Thomas Pitt] (1994) |
| | | Cain His Brother [William Monk] (1995) |
| | | Traitors' Gate [Charlotte and Thomas Pitt] (1995) |
| | | Weighed in the Balance [William Monk] (1996) |
| | | Pentecost Alley [Charlotte and Thomas Pitt] (1996) |
| | | Ashworth Hall [Charlotte and Thomas Pitt] (1997) |
| | | A Breach of Promise [William Monk] (1997) |
| | | The Silent Cry [William Monk] (1997) |
| | | Brunswick Gardens [Charlotte and Thomas Pitt] (1998) |
| | | A Dish Taken Cold (1998) |
| | | Half Moon Street [Charlotte and Thomas Pitt] (1998) |
| | | The Twisted Root [William Monk] (1999) |
| | | Tathea [Tathea] (1999) |
| | | Bedford Square [Charlotte and Thomas Pitt] (1999) |
| | | Slaves of Obsession [William Monk] (2000) |
| | | Come Armageddon [Tathea] (2001) |
| | | Naked Came the Phoenix (2001) |
| | | Funeral in Blue [William Monk] (2001) |
| | | The Whitechapel Conspiracy [Charlotte and Thomas Pitt] (2001) |
| | | Death of a Stranger [William Monk] (2002) |
| | | Southampton Row [Charlotte and Thomas Pitt] (2002) |
| | | A Christmas Journey aka Journey Towards Christmas [Christmas Mysteries] (2003) |
| | | No Graves as Yet [Reavley] (2003) |
| | | Seven Dials [Charlotte and Thomas Pitt] (2003) |
| | | Shoulder the Sky [Reavley] (2004) |
| | | The Shifting Tide [William Monk] (2004) |
| | | A Christmas Visitor [Christmas Mysteries] (2004) |
| | | Angels in the Gloom [Reavley] (2005) |
| | | A Christmas Guest [Christmas Mysteries] (2005) |
| | | Long Spoon Lane [Charlotte and Thomas Pitt] (2005) |
| | | A Christmas Secret [Christmas Mysteries] (2006) |
| | | Dark Assassin [William Monk] (2006) |
| | | At Some Disputed Barricade [Reavley] (2006) |
| | | A Christmas Beginning [Christmas Mysteries] (2007) |
| | | We Shall Not Sleep [Reavley] (2007) |
| | | A Christmas Grace [Christmas Mysteries] (2008) |
| | | Buckingham Palace Gardens [Charlotte and Thomas Pitt] (2008) |
| | | Execution Dock [William Monk] (2009) |
| | | A Christmas Promise [Christmas Mysteries] (2009) |
| | | A Christmas Odyssey [Christmas Mysteries] (2010) |
| | | The Sheen on the Silk (2010) |
| | | Treason at Lisson Grove [Charlotte and Thomas Pitt] (2010) |
| | | Rose of No Man's Land [Timepiece] (2011) |
| | | Tudor Rose [Timepiece] (2011) |
| | | Dorchester Terrace [Charlotte and Thomas Pitt] (2011) |
| | | A Christmas Homecoming [Christmas Mysteries] (2011) |
| | | Acceptable Loss [William Monk] (2011) |
| | | A Christmas Garland [Christmas Mysteries] (2012) |
| | | A Sunless Sea [William Monk] (2012) |
| | | Midnight at Marble Arch [Charlotte and Thomas Pitt] (2012) |
| | | Blood Red Rose [Timepiece] (2012) |
| | | Rose Between Two Thorns [Timepiece] (2012) |
| | | Blind Justice [William Monk] (2013) |
| | | A Christmas Hope [Christmas Mysteries] (2013) |
| | | Death on Blackheath [Charlotte and Thomas Pitt] (2013) |
| | | Blood on the Water [William Monk] (2014) |
| | | A New York Christmas [Christmas Mysteries] (2014) |
| | | The Angel Court Affair [Charlotte and Thomas Pitt] (2014) |
| | | Treachery at Lancaster Gate [Charlotte and Thomas Pitt] (2015) |
| | | A Christmas Escape [Christmas Mysteries] (2015) |
| | | Corridors of the Night [William Monk] (2015) |
| | | A Christmas Message [Christmas Mysteries] (2016) |
| | | Revenge in a Cold River [William Monk] (2016) |
| | | Murder on the Serpentine [Charlotte and Thomas Pitt] (2016) |
| | | Twenty-One Days [Daniel Pitt] (2017) |
| | | An Echo of Murder [William Monk] (2017) |
| | | A Christmas Return [Christmas Mysteries] (2017) |
| | | Triple Jeopardy [Daniel Pitt] (2018) |
| | | A Christmas Revelation [Christmas Mysteries] (2018) |
| | | Dark Tide Rising [William Monk] (2018) |
| | | One Fatal Flaw [Daniel Pitt] (2019) |
| | | A Christmas Gathering [Christmas Mysteries] (2019) |
| | | Death with a Double Edge [Daniel Pitt] (2020) |
| | | A Christmas Resolution [Christmas Mysteries] (2020) |
| | | A Christmas Legacy [Christmas Mysteries] (2021) |
| | | Three Debts Paid [Daniel Pitt] (2021) |
| | | A Christmas Deliverance [Christmas Mysteries] (2022) |
| | | The Fourth Enemy [Daniel Pitt] (2022) |
| | | A Christmas Vanishing [Christmas Mysteries] (2023) |
| |