Reddit mentions of Gravity Falls: Lost Legends: 4 All-New Adventures!

Lost Legends

Don’t know how it snuck by you, there was a lot of talk about t when it was first released.

It's from the Lost Legends book! 100% recommend, it's brilliant and you'll read everything in the character's voices perfectly.

https://www.amazon.com/Gravity-Falls-Legends-All-New-Adventures/dp/1368021425

Here you go :)
Gravity Falls: Lost Legends
https://www.amazon.com/Gravity-Falls-Legends-All-New-Adventures/dp/1368021425/ref=sr_1_1_sspa?crid=24T1HZGLXGQUP&keywords=gravity+falls+lost+legends&qid=1558137363&s=gateway&sprefix=gravity+falls+lost+legn%2Caps%2C197&sr=8-1-spons&psc=1

A few different ways both hard copy and digital.
Here is the Amazon link https://www.amazon.com/Gravity-Falls-Legends-All-New-Adventures/dp/1368021425/ref=mp_s_a_1_1?ie=UTF8&qid=1549148698&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=Gravity+falls+comic&dpPl=1&dpID=413AYa16BlL&ref=plSrch
But you can find it most anywhere current production books are found

Regarding your spoiler, you should check out the graphic novel, Gravity Falls: Lost Legends if you haven't.

That would be the confirm of this: https://www.amazon.com/gp/product/1368021425 - did they give us a title? :D

The closest we'll get is the Title To Be Revealed: Gravity Falls Graphic Novel.

https://www.amazon.co.uk/Gravity-Falls-Legends-All-New-Adventures/dp/1368021425?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-fpas-uk-21&linkCode=xm2&camp=2025&creative=165953&creativeASIN=1368021425

> Long

https://www.amazon.com/Gravity-Falls-Legends-All-New-Adventures/dp/1368021425/

That's the only one that's probably going to satisfy your cravings. Good luck!

The graphic novel Gravity Falls: Lost Legends has four stories that feel a lot like new episodes for the show.

https://www.amazon.com/Gravity-Falls-Legends-All-New-Adventures/dp/1368021425

Here you go mate, don't go crazy tho

I miss it. They have a pretty good looking comic book of Lost Stories at B&N/Amazon/hopefully my local library soon... https://smile.amazon.com/gp/product/1368021425/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

There isn't an official Journal 1 or 2 yet, but there is a Journal 3! There's two editions: the normal journal, and the limited-edition blacklight collector's journal. If you're lucky you might be able to find another blacklight edition for sale somewhere, but they're usually very expensive. The normal Journal 3 is still for sale and more affordable though. Here's a link to it on Amazon. (Pricing may vary in other countries.)

There's also Dipper's and Mabel's Guide to Mystery and Non-Stop Fun and Gravity Falls: Lost Legends.