Credit: Video Still Photo: VIDEO Mona Sneak Peek Season 3 Halloween Episode

Creepy alert! ABC Family has just released a brand spankin’ new sneak peek from the upcoming Pretty Little Liars Halloween episode (Season 3, Episode 13: “This Is a Dark Ride,” airing October 23) and it is very spooky.

In the clip, Mona (Janel Parrish) is back in the asylum and working on painting a messed up doll head for some sort of Halloween project. Mona sings “Teddy Bear’s Picnic,” a popular children’s song, which just adds to the scene’s creepiness. Then, Mona starts talking to a mysterious figure, who is shrouded in black. The figure could be an “A” team member, but the lifelessness of the figure makes us wonder if Mona has sneaked Ali’s dead body into the mental hospital.

What do you think? Watch the clip below.

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Credit: ABC Family Photo: Pretty Little Liars Season 3 Halloween Sneak Peek: Mona Plans for Halloween (VIDEO)

Find more Pretty Little Liars spoilers here.

Don’t miss the next new episode of PLL, the Halloween special, on Tuesday, October 23 at 8 p.m. ET/PT on ABC Family.

Follow Maria Mercedes Lara on Twitter @maria_mercedes.

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