Nest-Egg for the Baron

Read Nest-Egg for the Baron Storyline:

John Mannering (aka 'The Baron') of Quinns Antiques in Mayfair, is in danger. Several murders have taken place and a mysterious gunman pursues him. Behind it all lies a blond woman, who appears to be (at least temporarily) dumb and a nest egg of gold holding five bejewelled eggs. Can he escape danger and at the same time solve the mystery?