We're constantly looking for clues about what's coming up next on Pretty Little Liars, and what better source of info than the promos themselves?

We've taken a close look at the preview for Season 3, Episode 18: "Dead to Me" and there's a lot of exciting stuff going on. Here’s what we gathered from our frame-by-frame analysis:

The Liars say goodbye: As this sneak peek shows, this episode will involve Alison (Sasha Pieterse) being put to rest in a crypt, and the Liars saying goodbye. We're pretty sure that's why Hanna (Ashley Benson), Aria (Lucy Hale), and Emily (Shay Mitchell) are gathered together at :01.

Emily receives an "A" card: At :02, Emily receives a postcard from "A". It's in French, and says "Arrete de creuser! LA police sAit dejA que c'est toi qui est cApAble de meurtre!" That roughly translates to Stop digging! The police already know it's you who's capable of murder.

It's worth nothing that the Ts seem to be capitalized as well as the As. A hint about Toby (Keegan Allen), or just a quick of handwriting?

Spencer vs. Mona: We see Spencer (Troian Bellisario) and Mona (Janel Parrish) face off by the lockers. You can see more of that scene here.

Spencer is near breaking: Not only does the voiceover say "the breaking point is near," but at :08 we see Spencer (Troian Bellisario) curled up on her floor, looking pretty stressed out. We also see Emily and Hanna looking upset.

Wesley is back! At :11 we see Wesley (Gregg Sulkin) running, holding Aria's hand.

Spencer goes searching: At :12 we see Spencer enter a creepy looking room that appears to have pictures torn down. Part of her search for the truth about Toby?

Hypnotherapy: Dr. Sullivan is back, and wants Emily (Shay Mitchell) to undergo hypnotherapy to dig up repressed memories.

Emily's memories: Speaking of digging, Emily says she remembers "exactly what happened." We're shown a flashback of a distressed Ali screaming "what do you think you're doing?" while Emily raises a shovel, as if she's about to hit someone.

Watch it for yourself below!

Credit: YouTube Photo: Pretty Little Liars Season 2, Episode 18 Preview: A Revealing Memory (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.

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.