Lauren, Jack, Ruby and Billy live by the seaside with their mum and dad. But their parents are always arguing, and then their dad moves out. Lauren and Jack decide they have to get them together again. And so begins Operation Eiffel Tower ...in which the four children try to raise money to give their mum and dad a treat in an attempt to make them happier.
Marsh Road Mysteries: Crowns and Codebreakers : Crowns and Codebreakers
