Rules for the Vigenere Cryptogram

This month, we continue with the Vigenere.  As I did last month, I have included a short essay explaining some of the ways to break the Vigenere, highlighting the popular Kasiski method, which is effective not only on the Vigenere, but on other periodic ciphers (some of which we'll take up in subsequent months).

Neglect not the "crib"!

In the Vigenere cryptogram, I've deliberately constructed both the message and the keyword to be accessible by cribs.  These are useful, as confirmed by several messages by solvers via private channel indicating they have broken ciphers almost entirely by guessing the right crib.   

***Take me to the Vigenere cryptogram!***