Gravity Falls, Alex Hirsch has brought back his most nefarious of villains — Bill. But if you can’t resist, just know this: Once you make a deal with Bill, it’s not so easily undone. Inside, Bill sheds light on his bizarre origins, his sinister effects on human history, the Pines family’s most embarrassing secrets, and the key to overthrowing the world (laid out in a handy step-by-step guide).