"Pretty Little Liars" may be on hiatus, but spoilers are surfacing regarding the Halloween episode, "Grave New World," as well as "Ravenswood."

Firstly, the Halloween episode will air October 22, right before the "Ravenswood" series premiere, and according to spoilers, several big reveals will take place.

In an interview with Janel Parrish (Mona), the actress confirms that "Pretty Little Liars" will reveal the identity of the other Red Coat. Of course, red coat #1 is CeCe.

And most recently, a photo has leaked online showing that Allison is not only alive, but is in fact the other Red Coat!

What do you think? Is this photo real or just a "red" herring? So far, no other spoilers pertaining to the identity of Red Coat have surfaced.

And of course, with "Pretty Little Liars" setting up "Ravenswood" with the exit of Tyler Blackburn as Caleb, fans are curious whether characters from "Pretty Little Liars" will appear on the spin-off series.

And according to Hollywood Reporter, the answer is yes!

Ashley Benson (Hannah) is set to appear on "Ravenswood" in episode 5. She will be seen talking to Caleb on the phone as Caleb navigates the mysterious town of Ravenswood.

For now, however, much mystery is still wrapped around "Pretty Little Liars" Halloween episode, but fans do have a few clips to tide them over until October 22.

Check the clips here!