Leslie Stone; i think she's up to no good in the town of Rosewood. Is it weird that even though Mona said she would help Spencer and Hanna in Radley to look for the Charles Dilaurentis file, she chose to help Leslie find her Radley file...hmmm?
Mona knows who stole the game from her; think about my theory:
Mona knew Leslie from Radley
Leslie knew Bethany and Charles while she was in Radley, and she shared the same room as Bethany if i recall. So there must have been some connection between these 3.
So Leslie had to know about Charles's death in Radley; she could've been really close to him for all we know, the point is Leslie may have found out about the Dilaurentis family and how they put Charles in Radley and basically cut him out of the family because he had "anger problem's",
but then the theory I am still trying to unravel is what really went down with Bethany and Leslie.
not that good but i am still keeping my eye out on Leslie Stone. Feel free to tell me what you think of my theory and also feel free to add to it as well!