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)
14 The White Dragon (2022)
15 The Fountain (2022)
16 Justice (2023)
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)
14 The White Dragon (2022)
15 The Fountain (2022)
16 Justice (2023)
