Later, Aria and Alison go out for frozen yogurt. While they are walking, Mona sees them and calls out to join them. Aria looks inclined to stop, but Alison propels Aria forward in attempt to lose Mona. They run until they turn a corner past some bushes, then stop in their tracks when they see Byron and Meredith making out in his car. Byron is all smiles until he spots his daughter and her crestfallen face.
It is the Halloween before Alison went missing and the only concern for Aria, Emily, Hanna and Spencer is to score an invite to Noel Khan's Halloween party. But with a new girl in town to challenge Ali for Queen Bee dominance, Spencer possibly losing the class president election along with her parents' approval, and a shocking revelation for Aria about her father — there may be more to worry about than finding the perfect costume. With all of the tricks and treats floating around Rosewood, there may be something more sinister waiting out there for Ali and her best friends. #PLL #PrettyLittleLiars #PLLHalloween
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