Talk:The First Secret/@comment-6194614-20130325160314/@comment-68.200.112.145-20130329072841

It hasn't been confirmed if Mona was the one sending the A texts to Alison. It's been hinted at, though. When Spencer confronted Mona over the Vivian Darkbloom run-in, she realized Mona lied about it; however, it's possible that the story held some truth to it. Alison and A kept sending messages to each other in newspapers and made a plan to meet up. Alison was likely dressed as Vivian when she confronted A. (That could have easily been Mona, especially with what we've seen in this episode.)

I noticed not all of the things Alison received had  -A written at the end. I think she was being harassed by two different people, which makes the 3rd finale easier to understand.