If there's anyone who likes cryptic clues more than "A", it's the cast and crew of Pretty Little Liars. Director Norman Buckley recently tweeted a bit of dialogue from Season 4, Episode 3: "Cat' Cradle," and it might not tell us much, but it's very intriguing.

"Even more ambiguous dialogue coming up next week on #PLL ‘Cat's Cradle’..." Norman tweeted, along with an image of the following exchange from a script:

Aria: Why would she do something like that?

Emily: "That's immortality, my darlings."

Obviously, Emily is quoting Alison in that second line, which makes us think the "she" Aria is asking about is Ali. But what is the "something" that has Aria so baffled?

Our guess is it's related to the Ali masks. We know that the Liars meet a mask maker this week, and he appears to be the one responsible for the Ali masks. Maybe they learn that Ali had the masks made back when she was alive, and the Liars are wondering why in the world she'd do that.

What do you make of this cryptic bit of dialogue? Share your theories in the comments below!

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, June 25, 2013 at 8 p.m. ET/PT on ABC Family.

Source: @Norbuck

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