With Sophie still missing in action after their explosive mission in Paris, Lil decides to take matters into her own hands. On a new mission for the Secret Service Bureau, can Lil find Sophie in misty, mysterious St Petersburg?


Can they uncover the identity of their true enemy and can they trust anyone - even the Bureau?


It's time for Sophie and Lil to put their spy skills to the test.


Read the first book in the TAYLOR AND ROSE SECRET AGENTS series:


PERIL IN PARIS


Don't miss The SINCLAIR'S MYSTERIES series:


THE CLOCKWORK SPARROW
THE JEWELLED MOTH
THE PAINTED DRAGON
THE MIDNIGHT PEACOCK


Perfect for fans of Robin Stevens' Murder Most Unladylike series, Katherine Rundell and Emma Carroll.