You receive the letter on a Sunday afternoon. The parchment is thick and ornately decorated, though the handwriting is barely legible. It reads:

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To the Esteemed Detective,

I have a case that requires your unique skills.

Bill Cipher is dead.

The dream demon who once terrorized our town is no more. While many wouldn't mourn his passing, his murder means there is a dangerous killer on the loose in Gravity Falls.

I have my suspicions about who may be behind this deed, hence I have personally taken the liberty of gathering the usual suspects at the Mystery Shack this evening. Each individual has their own volatile history with the dream demon and more than ample motive for murder. Profiles of the suspects are attached for your review. Interview them and determine who had the means and opportunity to carry out this act.

The fate of Gravity Falls is in your hands, Detective. I await your finding with bated breath.

Signed,

[It's signed, but the name is... extremely illegible.]

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The stakes of this strange case immediately pique your interest as a veteran private eye. With your magnifying glass in hand, you pack your bag and catch the first bus to Gravity Falls. Now you'll have to find out...

WHO KILLED BILL?

Main Image

Background Credits: Ian Worrel, art director of Gravity Falls from 2011-2015