The Proving (third draft in progress)
Warren Stance works for The Skeptics Handbook, a magazine that debunks hoaxes and false claims. He works with soon-to-be father Harris, data miner Glade and their boss, The Prof, in Bristol.
They receive a photograph of a baby girl washed up on Portland beach. It has a faint black cross on its chest. While the police search for its distraught mother, Warren suspects more is at stake. With Harris gone to care for his wife, Warren asks his older sister, a police constable on sick leave, to help him.
They discover a network of influence across the island, all trying to prevent them from stopping the next tragedy.
Update: on hold after speaking to agents. Nature of killings considered too risky for many US publishers.