But will it be as dark as her season 2 eyeliner?

When we first met Eleven inStranger Things' debut season, she was in a pretty bleak place.

“This has definitely been the hardest season I’ve ever filmed.

Millie Bobby Brown on ‘Stranger Things’

Millie Bobby Brown on ‘Stranger Things’.Netflix

“That story line of her as a young child wasn’t covered.

Eleven won’t be the only one in a dark place when we return to Hawkins.

“I think inherently it becomes darker every season,” Wolfhard muses.

“It also kind of becomes [a] different genre…

I mean, it gets everything.

It gets funnier, it gets scarier, it gets more dramatic.

And I think that just comes with all of us growing up and getting older.

And that’s kind of where we’re at now.

It’s a perfect progression, in my opinion.”

Stranger Thingsseason 4, volume 1 emerges from the Upside Down and onto Netflix May 27.