Zachariah is Andrews! I totally did NOT see that one coming! Woo! That puts a whole different spin on things (especially as I have just gone back to the beginning and started to re-read 'Unwanted').
As I said in my last comment, I can't wait to see where you go with this. I am thoroughly enjoying the series, even when it makes my heart ache for Dean

P.S. I'm also a Terry Pratchett fan, and have been lucky enough to have met him several times, as well as attended the Discworld conventions. That is how I met some people who have gone on to become some of my closest and dearest friends.