Sean O'Brien
1. A False Dawn (2009)
2. The 24th Letter (2010)
3. The Butterfly Forest (2011)
4. The Black Bullet (2012)
5. Blood of Cain (2013)
6. Black River (2014)
7. Cemetery Road (2015)
8. A Murder of Crows (2016)
9. Dragonfly (2019)
10. The Orchid Keeper (2019)
11. Mermaid (2020)
12. Flash of Gold (2021)
13. Invisible (2021)
2. The 24th Letter (2010)
3. The Butterfly Forest (2011)
4. The Black Bullet (2012)
5. Blood of Cain (2013)
6. Black River (2014)
7. Cemetery Road (2015)
8. A Murder of Crows (2016)
9. Dragonfly (2019)
10. The Orchid Keeper (2019)
11. Mermaid (2020)
12. Flash of Gold (2021)
13. Invisible (2021)