Credit: Video still

In this sneak peek of the Pretty Little Liars Season 3 summer finale (Season 3, Episode 12: “The Lady Killer”), Paige (Lindsey Shaw) approaches Spencer (Troian Bellisario) while the two are at their lockers. She warns her to stay out of her and Emily’s (Shay Mitchell) lives.

Spencer says she will hurt Paige if she hurts Emily, but Paige doesn’t take that very well at all.

See scary Paige in action, and learn why Spencer’s hands are shaking after the encounter, in the clip below!

Credit: YouTube Photo: Pretty Little Liars Season 3 Summer Finale: Paige Warns Spencer to Stay Away (VIDEO)

Catch the PLL Season 3 summer finale on Tuesday, August 28 at 8 p.m. ET/PT on ABC Family.

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