"Based on the series created by Alex Hirsch"--Title page. "Part one is based on the episode "The Time Traveller's Pig," written by Aury Wallington, Alex Hirsch"--Title page. "Part two is based on the episode "Land Before Swine," written by Tim McKeon, Alex Hirsch"--Title page. "Disney XD"--Title page. Based on the television program Gravity Falls.
Summary:
At the moment when Mabel wins Waddles the pig at the Mystery Fair, Dipper ruins his chance to impress Wendy. But when Dipper finds a way to travel back in time and changes his fate with Wendy, Mabel's fate also changes--for the worse. Then, when a prehistoric creature snatches up Waddles, it's up to the Gravity Falls gang to save him!
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