ivana knew feeding another in this way known as diablerie - is explicitly forbidden by vampirism tradition and is considered a crime by the camarilla the global sect of vampires in which all kindred may hold membership but she needed her fledgling to help her identify the deep rooted sense of foreboding that consumed her , and in the hunger induced state that alexia was currently in , she was of no use to anyone ; besides the camarilla had always regarded her as a caitiff a vampire of no clan which meant she had never been fully accepted into their realm .