It’s Christmas and Britain is in the grips of the worst winter on record. When a precious jewel is stolen from a snowbound train, the crime-solving nun uncovers murder, ancient curses and dark family secrets.

Sister Boniface finds herself on the hunt for a killer doll when a local toymaker is discovered stabbed to death in a locked room.

Mrs Clam goes undercover when glamourous door-to-door saleswomen arrive in Great Slaughter, bringing makeovers and murder with them.