Mysteries won't run out in "Pretty Little Liars" season 7. In fact, they will only pile up in the new season of the long-running mystery-thriller.

Showrunner Marlene King is not making things easy for fans of the show as she drops titbits of details that give birth to more questions rather than clarifications.

On Twitter, King revealed the enigmatic title of the "Pretty Little Liars" season 7 premiere, which hints that the liars will once again be put under killer pressure.

It is safe to say that "Pretty Little Liars" season 7 opener will see the liars running against time to either save Hanna or themselves from another evil scheme orchestrated Uber A. Hanna's fate ought to be revealed in this episode, too.

Fans will remember that Hanna was made bait to Uber A by "confessing" to killing Charlotte. Right now, things aren't looking good for her after her plan went dangerously off beam.

And while the rest of the girls are out of Uber A's clutches, at least for now, they will be in a position as precarious as that of Hanna's come "Pretty Little Liars" season 7.

King has made it perfectly clear in an interview with Variety that Uber A aka A.D. is the "scariest A" of all whose "uber capabilities" will be experienced first-hand by the liars in "Pretty Little Liars" season 7.

She also promised that Uber A's identity will be revealed in "Pretty Little Liars" season 7. "There will be hints of it within the season. It's a roadmap, as we say," King explained.

King also guaranteed that fans will once again be in for another blockbuster ride in "Pretty Little Liars" season 7.

"There are a lot of twists of turns, but I will say that both of the Season 7 finales [midseason and ending] will be even more epic than what we watched [in the season 6 finale]," the showrunner added.

"Pretty Little Liars" season 7 will also see more of Mary Parker, who was promoted to series regular. Needless to say, Mrs. D's twin sister's terrors are just getting started.

"Pretty Little Liars" season 7 will premiere this summer on Freeform.