Credit: ABC Family

As most fans know by now, the Pretty Little Liars Season 3 summer finale (Season 3, Episode 12: “The Lady Killer”) will feature an epic betrayal by someone close to the girls.

Promos seem to hint that the betrayer is part of the "A" team, but fans have noted that that's not the only way the Liars could be betrayed, and lots of people have been speculating that the betrayal is something else. So is it about the "A" team? Showrunner Marlene King clarifies.

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"For all of you who have asked," Marlene recently tweeted, "Yes, the betrayer who will be unmasked in the summer finale is a member of the A-TEAM."

The press release about the episode also confirms that this is what the reveal is about.

So there you have it. The "ultimate betrayal," as ABC Family calls it, is exactly what it sounds like. 

Who do you think betrays the girls? Let us know in the comments below!

Find more Pretty Little Liars spoilers here.

Catch an all-new episode of PLL on Tuesday, August 14 at 8 p.m. ET/PT on ABC Family.

Source: Twitter

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