Used by the ancient Greeks, writing a message in columns is a good way of sending secret messages to friends.
First agree a key e.g. CODES
Then number the letters in the key alphabetically.
Then write your message underneath. Say we have hidden a treat for our friend to find under a red chair.
C |
O |
D |
E |
S |
1 |
4 |
2 |
3 |
5 |
I |
T |
I |
S |
U |
N |
D |
E |
R |
T |
H |
E |
R |
E |
D |
C |
H |
A |
I |
R |
Finally write out the code in regular groups in the order of the numbered columns.
INHC IERA SREI TDEH UTDR
With the key, your friend should be able to find the treat … if they’re a cunning code cracker too.
Can you crack this?