Season 4 Episodes 1-21's Titles: http://tinyurl.com/mze4gbj For years , the Liars thought their friend was dead , but Tuesday , Oct.22 "Grave New World" will take them to the Ravenswood's Founders Day Party . Can they find Alison before 'A' does ? Tune in to the 2 HOUR Halloween Special , Tuesday , October 22 . 8/7 only on ABCFamily ! #PLLSearchParty
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Grave New World is the thirteenth episode of Season 4 of Pretty Little Liars and the backdoor...