Eight months into a surrogate pregnancy for her sister, Kristina, Detective Savannah Dunbar just wants to wrap up paperwork before taking medical leave. But her department's investigation into a brutal double homicide has suddenly become much more complex--and personal. And now there are disturbing rumors about a place known as the Colony, its matriarch, and a long history of bitter secrets.

On the wild Oregon coast, tucked between the mountains and the sea, stands Siren Song, home to a group of women known as The Colony. Their aunt hoped the isolated lodge would be a sanctuary, a place where she could protect them and their special gifts. But nowhere is safe from the man who has marked them for death. The note pinned to the dead body found on the remote beach has no name, just Ravinia Rutledge's phone number and the words Next of Kin....