Answer: Secret Code #244

The secret message says:

YES YOU CAN

The secret note decoded: YES YOU CAN
The note, decoded.

Letter by letter

Secret letterBFHLMVXZ
Real letterYUSONECA

Decode it with Python

This program does the decoding for you. Change the secret and the code to crack other messages!

secret = "BVH BLF XZM"
message = ""

for letter in secret:
    if letter.isalpha():
        position = ord(letter) - ord("A")
        message = message + chr(ord("Z") - position)
    else:
        message = message + letter

print(message)

When you run it, it prints:

YES YOU CAN

Did you know? The mirror code is thousands of years old. It was first used with the Hebrew alphabet, where the first letter swaps with the last, the second with the second-to-last, and so on.