27 books • 6 series
Book #1: Blood & Bones
Book #2: Blood & Lust
Book #3: Blood & Ash
Book #3: Monster's Spell
Book #1: Blood Of My Enemy
Book #2: Blood Of The Lost
Book #3: Thorne of Blood
Book #1: Heaven Knows
Book #2: Hell Everlasting
Book #1: Bite Me
Book #1: Lucifer
Book #2: Ash
Book #3: Azrael
Book #4: Samael
Book #5: Azazel