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!