This is the picture that might prove that the liars are there for Mona, rather than Lesli. She knows something and based on her acting normal, this could be her new lair and it would be a perfect cover up.
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Mona does not look impressed. Throughout these stills from the episode, she is the only one who has remained calm and that raises our suspicions that she is back to being the master manipulator. Did she ever have a break?!
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Mona has a Radley Sanitarium case file, but could it be Lesli's? You can bet your bottom dollar it is! It may seem like Mona has come to her senses, but don't rule out the possibility that she has manipulated the contents of the file.
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It sure looks like Mona is back to just popping up in random places. It remains to be seen whether she is on team Lesli, or team liars. Either way, look for some choice words thrown her way from the liars.
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It looks like those pleas for freedom didn't work and the liars aren't getting back into the dollhouse, so they are spending the night in the yard with their pretty, mucky dresses and each other. I'm sure their conversation will be riveting.
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Aria pleas with someone to set them free. It's most likely Charles, but Emily seems to be staring in a completely different direction than the other liars. Could this be proof that there are two A's?
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Mona is deep in thought, but who could be on this liar's mind? She's probably thinking that she isn't as good as A as well as ways to ramp up her own form of deceit.
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Has Mona ever looked this good? Just kidding. Mona Vanderwaal looks like she hasn't taken a shower in quite some time. She looks like she has officially given up hope on escaping. We can't blame her. She's in the middle of nowhere.
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Pretty Little Liars Quotes

Hanna: Spencer say something. Why are we like radioactive?
Spencer: Bitch chipped us.

You think the truth is this big shiny disco ball of purity then go ahead and try it. See what it gets you. Telling the truth to the wrong person at the wrong time is how I ended up where I did. Take it from me you're always better off with a really good lie.

Alison