Pretty Little Liars' Mona Monster can't escape Rosewood's deadly drama.

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The former A will return to the Pennsylvania suburb this winter, and Janel Parrish's character will be as devious as ever. We never quite know what's going on inside Mona's scheming brain, and the appearance of Uber A won't make her any easier to decipher.

"She, too, is forced back to Rosewood and has a new mystery to face that kind of bonds the five of them together again, whether they want to be or not," Parrish said of her role in season 6B, according to TV Guide. "She still kind of shows up where you don't expect her to show up and says a couple things that kind of make you curious about what her true intentions are."

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Series creator Marlene King recently revealed that the season's "Uber Bad" is, in fact, the long awaited "Uber A," and her announcement brought old suspicions to the fore. Hanna, Aria, Emily, and Spencer will be five years older in "Of Late I Think of Rosewood," but that doesn't mean their suspect pool will be all that different. Will Mona make the list again?

Find out more when Pretty Little Liars returns to ABC Family/Freeform on Jan. 12 at 8 p.m. ET. Click the video below to see a preview for the midseason premiere.