37 books • 4 series
Book #1: Pure Power
Book #3: Pure Prophecy
Book #1: Part-Time Monster Hunter
Book #2: Blood Cartel
Book #3: Devil's Gambit
Book #4: Necrolord
Book #5: Darkness Beckons
Book #1: Fall of Zona Nox
Book #1: Shadow
Book #2: Trooper
Book #3: Captain
Book #4: Rise
Book #1: 36th Century