Anul aparitiei: 2013
Nr. pagini: 48 pagini
Stare: nefolosita (noua)
Book type: paperback
This book is all about keeping secrets. It shows you how to
set up secret meeting places and a secret post office and how to disguise your messages and maps. It shows you lots of secret codes and signals. On the first page you will meet the Black Hat Spy. Watch out for the tricks he plays in Spy Trick – these are things real spies have done. There are messages in code all through the book - see if you can work them out.