Tate Brombal & Werther Dell’Edera 
House of Slaughter #2 [PDF ebook] 

Erica Slaughter isn’t the only member of the House of Slaughter to have made sacrifices in order to become the monster hunter she is today. As a teenager, her handler and rival Aaron finds himself with a new roommate, the mysterious "transfer student" Jace Boucher. To initiate his training, Jace must prove his loyalty to the House of Slaughter through a binding ritual a ritual that few survive.