Did King Herod know about cryptography? It is a way to keep things secret by swapping letters for others using a cipher, so only those with the key can read the message. Perhaps, if he did, Herod might have sent a sinister christmas message like this. Can you work out what it says?
Download our pdf to get some clues of how to decrypt it. Don’t look at the final page if you don’t want to see the answer.