Credit: Video Still

"A" is as scary as ever on Pretty Little Liars Season 3, Episode 18: "Dead to Me" (February 5).

In this sneak peek of the episode, Emily (Shay Mitchell) interrupts Spencer's (Troian Bellisario) "funk" with a problem: She's gotten a major threat from "A" — and it takes Spencer's skills to understand it.

Check it out below.

Credit: YouTube Photo: Pretty Little Liars Season 3, Episode 18 Sneak Peek: Is Emily Capable of Murder? (VIDEO)

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, February 5, 2013 at 8 p.m. ET/PT on ABC Family.