Pretty Little Liars Mona isn't gone for good! Actress Janel Parrish will return to answer fan questions during the "Pretty Little Liars" 2014 Halloween special -- "We Love You to DeAth." Photo: ABC Family

Halloween just got scArier for “Pretty Little Liars” fans. The show may be on hiatus for a couple of months, but ABC Family is ready to give back to the viewers with a Halloween special -- “We Love You to DeAth.” The network just released a brand-new promotional video for the fan-appreciation episode, and it’s promising to be a fun (yet spooky) hour you won’t want to miss.

“We Love You to DeAth” will be shown Oct. 21 during ABC Family’s “13 Nights of Halloween” event. And since the “13 Nights of Halloween” programming is all about the “thrills and chills,” the hit series plans on revisiting the dead.

The new promo video teases that “Pretty Little Liars” fans will be welcoming back the dearly departed for one night of terror to “share their favorite freakout.” Viewers can look forward to seeing former stars Bianca Lawson (Maya), Ryan Merriman (Ian), Bryce Johnson (Det. Wilden) and Janel Parrish (Mona). And as Merriman teases, “You’re never really dead around here.”

Besides a visit from Rosewood’s victims, the cast -- including Troian Bellisario, Ashley Benson, Lucy Hale, Shay Mitchell and Sasha Pieterse -- will sit down to answer burning fan questions. So will viewers finally find out who “A” is?

In the promo video, Mitchell reads a fan question that asks: “Have you guys been told who ‘A’ is?” Hale can be seen shaking her head, but Bellisario responds that she knows.

“You have to earn it,” she says when her co-stars begin badgering her for the answer.

The “Pretty Little Liars” Halloween special, “We Love You to DeAth,” will be shown during ABC Family’s “13 Nights of Halloween” event Oct. 21 at 8 p.m. EDT. Will you be tuning in? Watch the promo video below and let us know what questions you’re hoping the cast will answer. Tweet your thoughts to @AmandaTVScoop.