Tune into ABC Family Tuesday night for the next episode of "Pretty Little Liars" to see if the Liars will finally figure out exactly how Charles is related to Alison DiLaurentis.

"PLL" star Sasha Pieterse who plays Alison talked to Seventeen about what is in store for Season 6.

"I can definitely confirm that Charles is part of the DiLaurentis family, but I cannot tell you where in the family tree that he is placed," Pieterse tells the magazine. "In fact there's just a lot of family issues, questions, everything about her family, and why she wasn't told about Charles."

Season 6 started with the girls escaping from Charles' Dollhouse with deep emotional scars. Whatever they went through in there will be revealed throughout the season. Police also found another girl in Charles' lair, Sara Harvey (Dre Davis), who went missing and was presumed dead.

"This is our darkest season. It's really creepy! I mean, it's intense to watch four or five girls go through torture," the "PLL" star spoils. "It's hard to figure out what is happening and why, what makes Charles tick and how he works, and what's brought him to this point that's just really dark."

In the promo photos for the next "PLL" episode, the girls are in the hospital with robes on as they recover from their captivity in Charles' lair.

"The Pretty Little Liars may have escaped from Charles, but they will not feel safe in Episode 2 of Season 6. And spoilers indicate that Ali will have to come to terms with her new notoriety in 'Songs Of Innocence.' Will the #SummerOfAnswers explain the truth about Sara Harvey?" the show's description reads on Hollywood Take.

"There may be some disturbing flashbacks this season when you'll see exactly what happened to them in the dollhouse," Pieterse says.

Tune into ABC Family Tuesday night at 8 p.m. to see what happens next on "Pretty Little Liars."

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