Bill Cipher is back, foolish mortals, and things about to get evenweirderaround here.

The Book of Billis now No.

2 on the Amazon best-sellers list as well as No.

The Book of Bill Gravity Falls

Barnes & Noble

1 on Amazon Hot New Releases chart, only displaced from the throne by Vice President-hopefulJ.D.

VancesHillbilly Elegy.But how is this Big Bad reigning supreme against non-fiction competitors?

Normally $26.99 you might buythe hardcover edition ofThe Book of Billfor $18 while Amazons promotion lasts.

Nightly visitations by foul spirits commenced almost immediately.

It has infected my mind and my dreams, and it will destroy your sanity.