In 'Pretty Little Liars' Season 6, fans will see the story revolving around 'A' getting gloomier, as the Liars will be stopped from endeavoring to flee Charles' dollhouse.

In 'Pretty Little Liars' Season 6 finale, fans saw the girls trying to escape the dollhouse, but soon recognize that they have been fenced in by their tormentor. Moreover, when the girls start believing that they have already seen the worst of Charles, they find that their tormentor's games take a more frantic turn and this has made them apprehend that Mona may be separated from them.

According to IB Times, the promo photographs of 'Pretty Little Liars,' Mona is locked up in a different room resembling a ruined prison. On the other hand, the promo video of the upcoming season of the teen drama mystery thriller series on ABC Family shows Mona lying on the floor singing to her. It is likely that Charles has locked up Mona in a separate room with a view to break her sense.

In addition, there are speculations that the Liars will be trying to leave Mona behind, as one can hear in the promo video someone with a voice similar to Mona yelling "Please don't leave me here."

Recently, actress Janel Parrish, who portrays the character of Mona, spoke to People as to how the dollhouse will wreck everyone's minds. Parrish also disclosed that all the girls will be having some grave scars.

She told the magazine, "I honestly think that we should be concerned for everybody's mental state when they're free. Because we're going to start seeing in season 6 that the girls are going to be punished for their actions by A, and slowly we'll start finding out more about what exactly happens to them, and I think that they're all going to leave the dollhouse pretty messed up. ... Everyone is going to have some serious scars when they leave the dollhouse."

The premiere episode of 'Pretty Little Liars' Season 6 titled 'Game On, Charles' will show some moments after the events that occurred in the show's Season 5 finale. Fans can see the girls preparing to deal with their angry tormentor. Elsewhere, Ezra, Caleb and Toby will continue the struggle to find the girls

'Pretty Little Liars' Season 6 premieres on Tuesday, 2 June, 2015, at 8:00 pm ET on ABC Family.