TIME FOR A RIDDLE!

A MARITAL PROBLEM RIDDLE

Many years ago in ajdjacent kingdoms lived a prince and a princess who were ideally suited, but soon after they married the two kingdoms declared war on each other. From that day on they were forbidden to see or communicate with each other. To ensure the kings command was obeyed they were locked away securely within their kingdoms.

The prince persuaded a guard to deliver and collect written messages from himself and the princess. The guard agreed, however the prince did not trust the guard, even if he were to seal the letters, the guard could still open, read and reseal them.

This problem was overcome when the prince devised a way of securing the letters that made it impossible for the guard to read the letters before they were delivered.

HOW DID HE DO IT?

the guard was illiterate!

sounds cleva

he sent 2 letters... the first letter was encrypted and the second letter was the decryption method so even if he read the first, he wouldn't know what it says till he reads the second. But when he gets the 2nd, he'd have already delivered the first?

Too complicated to be the answer? :S

How about a clue?

(They learnt alot of karate skills coz they had nufin better to do).

the princess used her long hair as a broom and her het as a niqaab and the little food she had was moulded into a cat and she went flying like a witch to the prince and grabbed the letter and went flying bak

can we have a clue please or maybe the answer would be good..:)