Tate Brombal & Werther Dell’Edera 
House of Slaughter #1 [PDF ebook] 

Discover the inner workings of the House of Slaughter in this new horror series exploring the secret history of the Order that forged Erica Slaughter into the monster hunter she is today. You know Aaron Slaughter as Erica’s handler and rival. But before he donned the black mask, Aaron was a teenager training within the House of Slaughter. Surviving within the school is tough enough, but it gets even more complicated when Aaron falls for a mysterious boy destined to be his competition.