Anne, confused and unhappy, comes to live in the cottage next to the derelict Watch House, where the volunteer boatmen had gathered for over a century to watch the cruel rocks and rescue those in danger from the sea. Her father has disappeared, her mother doesn’t want her and the Watch House seemed to be watching her.  Then the flashing lights appeared, and the messages scrawled by unseen hands in  the dust…Someone – or something – needed her help.