While Pretty Little Liars showrunner Marlene King had taken a break from dropping actual spoilers on Twitter, she has started tweeting a "photo of the day" now and again, and some of them seem like major hints about this show.

This picture, which she tweeted on December 4, strikes us as particularly telling. In it, two little girls stand side-by-side, wearing matching bright-red outfits. We can't help but wonder: Is this a hint that the common theory that Alison DiLaurentis (Sasha Pieterse) has a twin is true?

It's certainly possible. The two girls have blond hair, like Ali's. Even more importantly, they're wearing red. Marlene has been saying for a while now that "red is the new black," and we'll find out what the means this season. She has posted other clues that revolve around the color red, so it's pretty safe to assume that any image that focuses on the color red probably is a clue about the show of some sort.

On the other hand, maybe Marlene is just playing with fans. She knows that this theory is out there, and it's not like she actually says this picture is supposed to be taken literally.

Of course, even if Ali does have a twin, we're not sure what it means for the story. Did Ali's twin die in her place? Is Ali dead, but her twin alive? There are a ton of ways this plot could go.

What do you think this pic means?

Find more Pretty Little Liars spoilers here.

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

Source: @imarleneking

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.

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