Our heroines, Sophie and Lil, don cunning disguises, mingle in high society and munch many cucumber sandwiches to solve this curious case. Applaud their bravery as they follow a trail of terrible secrets that leads straight to London's most dangerous criminal mastermind, and put their own lives at risk. It will be the most thrilling event of the season.
![Subscribe to RSS - [The Sinclair mysteries]](https://schoolcat.fivesystems.org/misc/feed.png){kind=small}