23 books • 7 series
Book #1: Demons in D.C.
Book #2: In the Nyx of Time
Book #3: Abaddon Rising
Book #4: Sins of the Father
Book #5: Witches of Oz
Book #2: RedKoin
Book #1: Malice of the Cross
Book #1: The Cactus Killer
Book #2: The Lost Boys of London
Book #3: The Negative Man
Book #1: The Negative Man
Book #1: The Wolves of Valhalla