- _Forbidden_ (1996)
- _Forbidden Hearts_ (1997)
- _Secrets of the Lost_ (1999)
- _The Secret Adversary_ (2001)
- _The Last Songbird_ (2002)
- _When the Fire Falls_ (2003)
- _A New Song_ (2005)
- _The Lost Child_ (2005)
- _Whispers of the Past_ (2006)
- _The Secret Keeper_ (2007)
- _The Forgotten Songbird_ (2008)
- _Under the Northern Sky_ (2009)
- _Beneath a Distant Moon_ (2010)
- _The Daughter's Promise_ (2011)
- _The Girl at the Edge of the Ocean_ (2012)
- _The Woman in His Past_ (2013)
- _The Stranger She Found_ (2014)
- _The Secret of Greystone Manor_ (2015)
- _The Lost Wife of Somerset_ (2015)
- _The Perfect Stranger_ (2016)
- _The Secret of Grace Cove_ (2017)
- _The Love Knot_ (2018)
- _The Missing Wife_ (2018)
- _The House on Tradd Street_ (2019)
- _Island of Secrets_ (2019)
- _The Secret of Ballysheen House_ (2021)
- _The Woman in Cabin 10_ (2021)
- _The Woman Who Knew Too Much_ (2022)
Nonfiction
- _The Well-Balanced Writer: A Guide for Academic, Business, and Personal Success_ (with Harry N. Polikoff, 2010)