Evil is coming on ABC's Once Upon a Time and the show's star recently teased a few details on what's to come as it relates to The Spell of Shattered Sight.

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Once Upon a Time star Jennifer Morrison, who plays Emma on the series, spoke with Entertainment Tonight recently about a variety of topics, including the ensuing evil that comes with the Snow Queen (Elizabeth Mitchell) in addition to the aforementioned Spell.

"By episode nine and ten we're still really struggling to overcome the big picture," she teased. "We're winning some of the battles, but feeling like we're still losing the war."

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The Snow Queen may be turning the residents of Storybrooke against each other in the weeks to come.

"There's definitely a lot of turmoil going," Morrison revealed. "The Spell of Shattered Sight, which makes everyone see the worst in each other, would mean everyone would basically destroy each other."

While it is not clear when the spell will be hitting, it is definitely something that is bubbling up.

"It is coming and it does descend on the town," Morrison admitted.

As Morrison noted, the Snow Queen is clearly not well, mentally, and the extremes to which she goes is set to be revealed.

"She's clearly not well. She's extreme about it, and so we realize how intricate her plan has been, and how far back her plan goes," Morrison teased. "It's all coming to a head at this point."

Once Upon a Time airs Sundays at 8 p.m. ET/PT on ABC.

Watch the promo for the next episode of Once Upon a Time here:

Tags: Once Upon A Time television ABC