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Aria meets Duncan, a former friend of Alison, who didn't even know she was dead. He tells her that Ali would go flying with him and she seemed troubled by something that summer. Also, he picked her up in Hilton Head on Labor Day and flew her to Philadelphia hours before the girls thought she arrived home. Meanwhile, Jason gives Spencer some items of Alison's that Maya found in their house. Although none of the items are very useful, the girls do find a mysterious postcard and newspaper ad for a concert in Rosewood on Labor Day. Also, Toby returns to Rosewood, assisting Jenna after her first eye surgery. Spencer is upset that he would agree to help Jenna after everything that happened, but Toby still has sympathy for his step-sister and isn't too pleased with Spencer after their breakup. Jenna is later lured to Jason's house where she's trapped inside a a fire consumes the building. Luckily, she's saved by Hanna. And Maya emails Emily to tell her that she is safe, but not ready to talk to her parents.