Are you ready to…
* Crack the mysteries of Morse code?
* Solve some sneaky semaphore puzzles?
* Put your detective skills to the test?
This book is the perfect challenge for young spies and super-sleuths aged 6+.
ABOUT THE SERIES: Brain Boosters is an engaging educational series, full of mind-boggling puzzles and activities which are designed to test the maths and logic skills of young readers.
20 in stock
Fun & Activity, Mathematics
6+ years old