Another Pretty Little Liars' 'A' reveal is just around the corner, and Mona's flashbacks could hold the final clue.

Mona's 'Violent' & 'Bloody' 'Pretty Little Liars' Death Revealed, Janel Parrish Talks Flashbacks

The ABC Family series has run through numerous supposed 'A's, but the real baddie needs to eventually come out of the shadows. According to series creator Marline King, the ultimate reveal is 'closer than u think.'

Considering Mona (Janel Parrish) recently became the latest Pretty Little Liars death, her memories may hold the key to the killer's true identity, even if 'A' wasn't the one behind her untimely demise.

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"I think fans will get a lot of answers and a lot more of her back story," Parrish told TV Guide. "I'm hoping the flashbacks will take people on a journey into Mona world and that you'll see all the things she's been doing. It's going to be insightful."

While Parrish believes Alison had a major role in Mona's death, viewers will have to wait until Mona Monster's bloody death scene is revealed on screen.

Find out more when Pretty Little Liars returns for a Halloween special on Oct. 21. Click the video below to see a preview.

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Pretty little liars, Television, ABC Family