I expect everyone has now seen the idea of jumbling up the letters within a word. I showed it to Dom yesterday and she said it wouldn't work in French. So we carried out our own little experiment and it works in French too.
When I was at school my best friend and I used to communicate in mirror writing. We could read and write pretty fast after a bit of practice.
The best was that we had a boy in our class whose Father was an archeologist. His Dad helped him to work out the runes system used in Lord of the Rings. In our class notes were passed around in runic script (Are you out there somewhere Owen?)
Did you know?When The Hobbit and Lord of the Rings were first published, Tolkien wanted the maps to be printed in invisible ink.