Wow, you guys. We find out who "A" is next Monday on Pretty Little Liars Season 2, Episode 25: “UnmAsked.” It. Is. Really. Happening.

This preview for the episode doesn't really show us anything new, except that the girls get a note from "A" that says "be there when the clock strikes midnight." Why? What does "A" want from them? And why at midnight?

We'll find out oh-so-soon.

Credit: Abc Family via YouTube Photo: Pretty Little Liars Preview: Season 2, Episode 25: ''Be There When the Clock Strikes Midnight''

Be sure to tune in for the next episode of Pretty Little Liars on Monday, March 12 at 8 p.m. ET/PT on ABC Family.

Pretty Little Liars airs Mondays at 8 p.m. ET/PT on ABC Family.