The Bletchley Riddle

A House of Secrets Can They Break the Code

Siblings Jakob and his younger sister Lizzie are both on missions of their own to solve different riddles.  Jakob is working at Bletchley Park to crack the code for the Nazi's Enigma cipher while Lizzie is trying to solve the mysterious disappearance of their mother.  They must find a way to work together to unravel the ultimate puzzle that connects their two missions.