One of our favorite theories about Pretty Little Liars’ central mystery — who killed Alison (Sasha Pieterse)? — is that Alison is still alive. We’ve gone over several reasons why this theory holds water, but three recent clues make it an even stronger possibility in our eyes.

Here are new signs that Alison might be alive.

1. Alison was buried alive, but her hand found a way out. We’ve known that Ali was buried alive ever since the Liars found her autopsy report in the morgue. And in Season 2, Episode 24: “If These Dolls Could Talk," we saw how far the “A” team’s obsession with this fact went in the basement of that doll store, where a doll meant to look like Alison was set up to dig dirt as part of a creepy, talking toy. But thanks to a flashback in Season 3, Episode 13: “This Is a Dark Ride,” we also know that Ali could have dug her way out. Considering the twin theory from the books, what if Alison escaped her shallow grave, tracked down her twin, and then buried her instead?

2. The Liars are wearing their candy striper uniforms again. In this spoiler photoHanna (Ashley Benson) and Emily (Shay Mitchell) are both wearing the same candy striper uniforms that Aria(Lucy Hale) and Spencer (Troian Bellisario) had worn when investigating Alison’s autopsy report in Season 2. We’re speculating, but we could see a situation in which the girls want to check out Alison’s body in the morgue to try and figure out if it’s really her. Or, they could be visiting the mortician’s office to look for signs in the autopsy report that it wasn’t Ali’s body after all. The twin theory comes into play here, too. 

3. That ghostly little blonde girl. In “This Is a Dark Ride,” we met that creepy little girl at the Marins’ house. Some fans believe she was a ghost, and others have theorized that she represents a memory from Ashley Marin’s (Laura Leighton) past. Since the girl’s story resembled Alison’s Halloween ghost story from Season 2, Episode 13: ”The First Secret,” and the evil sister was prominent again, we think this is a sign that Alison’s twin will be unveiled in the Season 3 winter season, meaning either Ali or Courtney is still alive.

Share your own thoughts and theories in the comments below!

Catch the return of PLL Season 3 on Tuesday, January 8, 2013 at 8 p.m. ET/PT on ABC Family.

Molly Friedman is an editor at Wetpaint Entertainment. Follow her on Twitter @MollyFriedman.

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