Pretty Little Liar's Mona is back and looking rather pale.

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The murdered teen will return during the Pretty Little Liars Christmas special, and she will be hauling around Marley's chains.

A ghostly apparition, Mona (Janel Parrish) will reenact A Christmas Carol with Alison. Posing as the ghosts of Christmas past, present, and future, hopefully Mona will be able to give the Queen of Mean a little fright during "How the 'A' Stole Christmas."

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"You have not seen the last of Mona," Parrish told ET. "She will still be the crazy, dynamic Mona, even after death."

Parrish elaborated on her return while speaking with Zap2It.

"I'm going to be in the Christmas special as the ghost of Christmas past, present and future," Parrish said, adding that the "second half of the season there will be more Mona flashbacks."

The actress also reported that her costume is "super creepy." Fans can finally get a look at her new outfit with photos from TV Line.

Find out more when Pretty Little Liars airs Dec. 9 at 8 p.m. ET on ABC Family. Click the video below to see a preview for the series' holiday episode.