Hey, loyal Theorist, for MatPat’s penultimate Film Theory, we’re diving back into the world of Gravity Falls! But before that, we have to issue a big . Bill Cipher is everywhere. Not just in ...

Gravity Falls’ big villain, Bill Cipher, is getting his own book written by series creator, Alex Hirsch. And it’s for older readers! Out in July.

Alex Hirsch talks about Bill Cipher, Summerween, Gravity Falls, and which character deserves a 50 Shades of Gray-style spinoff. The Book of Bill is out now.