Click on a title to learn more, read an extract, or order your copy.
- Dragoncharm (1995, UK – HarperCollins-Voyager, USA – HarperPrism, Germany – Bastei-Lubbe, Hungary – Beholder; 2016, Special Edition – Independent)
- Dragonstorm (1996, UK – HarperCollins-Voyager)
- Dragonflame (1997, UK – HarperCollins-Voyager)
- Stone & Sky (1999, UK – HarperCollins-Voyager)
- Stone & Sea (2000, UK – HarperCollins-Voyager)
- Stone & Sun (2001, UK – HarperCollins-Voyager)
- Runaway Minister (2008, UK – Black Star Crime, writing as Nick Curtis)
- Close Enemies (2009, UK – Black Star Crime, writing as Nick Curtis)
- Talus and the Frozen King (2014, UK – Solaris)
- Crown of Three (2015, US – Aladdin, writing as J.D. Rinehart)
- The Lost Realm (2016, US – Aladdin, writing as J.D. Rinehart)
- A Kingdom Rises (2017, US – Aladdin, writing as J.D. Rinehart)
- String City (2019, UK – Solaris)
- Die Schule der Alyxa 1: Der dunkle Meister, AKA School of Alyxa: Secrets and Shadows (2018, Ravensburger; 2019, Willow Tree Books, writing as R.L. Ferguson)
- Die Schule der Alyxa 2: Morvans Erbe (2019, Ravensburger, writing as R.L. Ferguson)
- Die Schule der Alyxa 3: Der sechste Sinn (2019, Ravensburger, writing as R.L. Ferguson)
- The Dragons of Bloodrock (2020 – Independent)