All Souls: A Gatehouse Paranormal Thriller

What if ordinary evil isn't ordinary at all? There are rumors among the government-sanctioned assassins at Gatehouse that the killers they hunt are no longer human. With each murder they commit, their taste for evil grows and their humanity withers. And for the first time, these killers are joining forces. They have a mission. In a desperate race to uncover that mission, Jane Piper, a young assassin working for Gatehouse, must draw on every skill she possesses.
Targeted for elimination by an unknown figure and facing betrayal at the hands of those closest to her, she begins to question her most deeply held beliefs. The truth will change her forever.