We will finally find out who "A" is on the Pretty Little Liars Season 2 finale (Season 2, Episode 25: “UnmAsked”), but based on this sneak peek, there will be some games before we get the truth.

In this clip from the episode, the Liars all receive and invitation to a masquerade ball from "A," with a message to be there at midnight.

"'A' want to play hide and seek," Emily (Shay Mitchell) concludes.

Well, Spencer (Troian Bellisario) for one is fine with that. "Hide and seek was my favorite with Melissa," she says. "You wanna know why? I always won."

Which is great if Melissa actually is "A." If she's not, on the other hand...

Credit: ABC Family © 2012 Disney ABC Television Group Photo: Preview Clip of Pretty Little Liars Season 2, Episode 25: Hide and Seek

Watch the Pretty Little Liars Season 2 finale on Monday at 8 pm ET/PT on ABC Family.

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