A woman and her ghost roommate investigate their most personal case yet in Olivia Blacke’s The Key to a Killer , the next book in the Anthony Award winning Ruby and Cordelia Mysteries. When Ruby Young discovered that her Boston apartment was haunted, she did what any reasonable person would do: befriend the ghost. Their relationship overcame a shaky start―Cordelia Graves never wanted a roommate in life, she certainly didn’t want one in death. After working together to solve a few murders, the two are close friends, but there’s a lingering question neither of them have been able to answer: what led to Cordelia’s death? Lately things have been adding up that suggest foul play. And when Cordelia’s memories of that day start to come back, the roommates can’t ignore it anymore: Cordelia was murdered. Ruby and Cordelia are going to have to piece together what Cordelia’s final days looked like―otherwise a killer could go free. Praise for the Anthony Award Winning Ruby and Cordelia Mysteries “A hauntingly good time!” –Elle Cosimano “For readers who like their mystery with a solid dose of the otherworldly.” – Kirkus Reviews “This pair of amateur detectives just works.” – Booklist “Droll, a touch maudlin, and featuring two outstanding characters.” –First Clue OLIVIA BLACKE (she/her) is the Anthony Award-winning author of the Ruby and Cordelia Mysteries, as well as the cozy Record Shop Mysteries and the Brooklyn Murder Mysteries. She had her first ghost encounter when she was five, but wasn’t involved with an active crime scene until much later, when she accidentally stepped into a chalk outline on a Manhattan sidewalk. Armed with a Criminology degree, she channels her love of the supernatural and passion for writing into darkly humorous supernatural mysteries. She wants to be a unicorn when she grows up.