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Season 1 Episode 8
Gravity Falls
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Season 1 Episode 8
Irrational Treasure
Aug 17, 2012 on DiSNEY XD at 9:30 PM
Summary
When Dipper and Mabel discover evidence that the reported town founder is a hoax, they set out to expose the historical cover-up and prove that Mabel's silliness is not a bad thing.
