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Summary
To everyone's surprise, after college Mabel went on to become an agent for the FBI while her brother Dipper moved to Gravity Falls to run the shack alongside his great-uncle Stan. Currently following a series of murders, Mabel returns to Gravity Falls on less than ideal terms in order to investigate the latest victim. She hopes that with a little outside help from the closest person to her in the whole world, she can solve this case lickety-split. Can she catch a serial killer that's always two steps ahead and always watching?
