Pretty Little Liars Season 7 episode 19 spoilers: Fans may have already seen AD

Pretty Little Liars Season 7 episode 18 began on a good note for all the major couples of the show. Hanna and Caleb decided to get married and we also saw a lot of romance between Aria and Ezra, Emily and Alison.

Spencer also got lucky as Tuesday's episode featured Toby's return. They were about to infuse some romance into their lives before Spencer was arrested for obstruction of justice.

AD announced that the game has ended and revealed Aria as the winner of the game. But towards the end of the episode she ended up with a corpse in the trunk of her car.

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Besides Toby, another familiar face that will be putting in more appearances in the next two episodes is Wren, Pretty Little Liars executive producer Marlene King revealed in a recent interaction with the media.

Fans briefly saw Wren when he and Spencer had a chat at the airport, and their bizarre conversation led many to speculate that the person we saw chatting with Wren was actually AD, who they believe is Spencer's twin.

The synopsis for Season 7 episode 19, Farewell My Lovely, reads:

Convinced they know who A.D. is, the Liars gear up for a confrontation. Spencer, Hanna, and Caleb team up to investigate and discover new information about Charlotte's death. Meanwhile, Mary Drake returns with a gift for Spencer and Alison.

Pretty Little Liars airs Tuesdays on Freeform. The last two episodes will feature a number of flash-forward scenes and the show will reveal AD's real identity in either the final moments of episode 19 or in the finale.

Check out a promo for the penultimate episode of the series below: