This was such a quirky read abd i just fell in love with the character of Madame Burova.
When she is given two envelopes that she is told to pass on under her own judgement when the time is right she seeks out their recipient, Billie.
Those envelopes open a whole can of worms both for Madame Burova and Billie as they contain information that ultimately affects them both.
Contacting Billie leads to consequences for both.