Jodi Perkins 

Aviva Aevos is stalked by a shadow only she can see--the ghost of a young man from the 1800s, Kade Oaks. Frustrated by the havoc his presence is wreaking in her life, Aviva seeks to unravel the mystery of why Kade haunts her. As she digs deeper into his past, she discovers a connection between Kade and the notorious Angel Killer. But the closer Aviva comes to unveiling the truth, the more unstable Kade becomes...until one day, he's gone.

 

Determined to find the lost ghost, Aviva turns to her uncle for help. But will the chaos that follows allow her to rescue Kade, or trap her and her sisters forever in the past?