12 books • 6 series
Book #1: Civil War
Book #2: BattleFront
Book #1: Spirit and Fire
Book #1: Wind Wielder
Book #1: The Rebellion Awakens
Book #2: The Last Sentrys
Book #3: Rise of the Sentrys
Book #2: Liza Fury - Catch 22
Book #3: Tarja Titan