A mysterious man that showed up in the background was shown to be a time traveler in the episode "The Time Traveler's Pig".
Every episode has a unique, non-repeating "secret message" at the end of its credit scene.
It’s not on any maps, and most people have never heard of it. It premiered on August 1, 2014 on Disney Channel and August 4, 2014 on Disney XD.
"Mabel is going to be one of the breakout characters of the show. When we were growing up, my sister was obsessed with the boy band ’N Sync.She even broke her toe jumping up and down during one of their concerts.Plus, the book jacket doubles as an exclusive poster! I'm Alex Hirsch, the creator of Gravity Falls, and the voices of Grunkle Stan, Soos, Bill Cipher, Old Man Mc Gucket, and possibly your nightmares.If you're a fan of the show, or just someone who likes to be confused, delighted, and horrified (in that order), then you're in luck! Your pal, Alex Hirsch Several letters can be seen printed in purple, and when combined, it spells out the sentence, STAY WEIRD.During the last few seconds, a whisper can be heard that, when reversed, says "Three Letters Back". ATBASH WILL SUBSTITUTE," and the whisper was changed accordingly.
This is a Caesar cipher, which, in this case, uses a letter three places back from the letter it represents (e.g., A=X, Z=W, etc.) and is used from episode 101 ("Tourist Trapped") to episode 106 ("Dipper vs. Starting with episode 107 ("Double Dipper"), the cryptogram must be solved using the Atbash substitution cypher, which reverses the alphabet (meaning that A=Z, B=Y, and so on). After the song ends, a creature similar to the Eye of Providence is flashed.
Journal 3 brims with every page ever seen on the show plus all-new pages with monsters and secrets, notes from Dipper and Mabel, and the Author's full story.
Gravity Falls fans will simply love this 288-page full-color jacketed hardcover version of Journal 3!
If viewers actually called the number, they were greeted by a message from Stanley Pines. | Journal 3 | Dipper and Mabel and the Curse of the Time Pirate's Treasure!
“If you’ve ever taken a road trip through the northwest, you’ve probably seen a bumper sticker for a place called Gravity Falls. On February 15-16, 2014, Disney Channel announced that Gravity Falls would move to Disney XD along with Wander Over Yonder but would still air on Disney Channel only as part of "Disney XD on Disney Channel".
We never went there, but I was positively enchanted with the idea that there was a town called Boring; Gravity Falls is partially from what I imagine Boring might be like.