- The Memory Stones (2009)
- The Alchemy of Secrets (2010)
- The Girl Who Ate Books (2011)
- The Turn of the Key (2012)
- Enemies of Fire (2013)
- The Cipher (2014)
- The Book of a Thousand Days (2016)
- The Seven Sacred Seals (2017)
- The Girl in the Castle (2018)
Non-Fiction
- 12 Rules for Life: An Antidote to Chaos (2018)
- Beyond Order: 12 More Rules for Life (2021)