The document discusses a substitution cipher where each letter of the alphabet is assigned a number, for example A=1, B=2, etc. It then provides an example of encoding the word "FMOF" as "6 13 15 6" using the cipher. It also mentions that the October code challenge will involve substitution ciphers and that next month's riddle will be harder.

2. Five Minutes of Fame
October Code Challenge

4. “And so it came to pass...”

5. “And so it came to pass...”

6. “And so it came to pass...”

8. October Code

10. Freemasons and Secret
Societies

11. Substitution Cipher

12. Substitution Cipher
•A = 1

13. Substitution Cipher
•A = 1
•B = 2

14. Substitution Cipher
•A = 1
•B = 2
•C = 3

15. Substitution Cipher
•A = 1
•B = 2
•C = 3
• ... and so on

16. Substitution Cipher
•A = 1
•B = 2
•C = 3
• ... and so on
Example: “FMOF” becomes “6 13 15 6”

17. a=a
b=b
c=c
...and so on

19. becomes....
Ipromise
thatnext = I promise that next
monthsri month’s riddle will be
ddlewill
beharder
harder.