Book Title: Brain Boosters: Code Puzzles
ISBN: 9781784283483
By Author(s):REGAN LISA
By Publisher:ARCTURUS
Format:PB
Are you ready to... Crack the mysteries of Morse code Solve some sneaky semaphore puzzles Put your detective skills to the test Packed with tons of terrific brainteasers, this book is the perfect challenge for young spies and super-sleuths!