Titles in this Set:

1. The Bletchley Riddle
2. I Must Betray You
3. Salt to the Sea

Description:

The Bletchley Riddle
It is the summer of 1940. The world is at war. These days, you dont know who you can trust or who might be a secret spy

Maths whizz Jakob Novis has been recruited to the secret codebreaking centre at Bletchley Park. As Jakob works to crack the Nazis Enigma cipher, his younger sister Lizzie is busy on an undercover mission of her own: to find their mother.

Filled with codes to decipher and mysteries to unravel, this is the unputdownable historical adventure that will have you on the edge of your seats.

I Must Betray You
Cristian has lived his entire life in the grip of a repressive dictatorship. The country is governed by fear. When the secret police blackmail him, Cristian has an impossible choice. Save the life of hi