All fingers and thumbs

Idea 1: The silent twins

June and Jennifer Gibbons (born 11 April 1963; Jennifer died March 1993) were identical twins who grew up in Wales. They became known as "The Silent Twins" since they only communicated with each other. They began writing works of fiction but turned to crime in a bid for recognition. The crime they committed was apparently arson. Both women were committed to Broadmoor Hospital where they were held for 14 years.

Thoughts: Interesting couple. How do you write about secret communications? A special code they developed?

Three Secret Codes for Kids:
1. Reverse the Words.
2. Half-Reversed Alphabet. Write out the letters from A to M then write the letters from N to Z directly below them.
3. Read Every Second Letter.