The Bletchley riddle / Ruta Sepetys and Steve Sheinkin.

Cover title Bletchley riddle : A house of secrets. A war of codes
Abstract In the summer of 1940, siblings Jakob and Lizzie Novis find themselves at Bletchley Park, where Jakob works to crack Nazi codes while Lizzie investigates the mysterious disappearance of their mother, only to discover that the two mysteries are intertwined.
General note"A house of secrets, a war of codes"--Dust jacket.
Interest age level Ages 10-14. Viking.
Interest grade level Grades 4-6. Viking.
Audience HL 540 Lexile
Study program note Accelerated Reader AR
Issued in other formOnline version: Sepetys, Ruta. Bletchley riddle New York : Viking, 2024 9780593527566
Genre/formFiction.
Genre/formCryptologic fiction.
Genre/formDetective and mystery fiction.
Genre/formHistorical fiction.
Genre/formWar fiction.
Genre/formNovels.
Genre/formJuvenile works.
Genre/formHistorical fiction.
Genre/formNovels.
LCCN 2024039962
ISBN9780593527542 (hardcover)
ISBN0593527542 (hardcover)
ISBN(ebook)
ISBN(internal edition)
ISBN(paperback)