Who is the puppeteer?

I'm driving myself crazy trying to figure this out. I have my bad character and know what they do and what they gain by perpetrating this evil. . .
BUT I don't know who is playing with the puppet's strings!
Two chapters are written, but I've been stopped cold by this. True, my character doesn't find out who is behind all this until the end of the book, BUT I NEED TO KNOW IT NOW!
Argh! talk about frustrating...
Oh, cool. . . I just had a thought about who could be behind all of the hideous happenings.
Hm, let me re-read my first two chapters and see if this inkling of an idea has merit.
BWAHAHAHAHA--
By Jove, I think I got it! Yay!