SPOILER ALERT: This post contains spoilers for the entirety of Stranger Things Season 5 Volume 1 .

One big question ahead of Season 5 of Stranger Things is answered in the fourth episode of the final season, now streaming on Netflix .

Viewers and fans have long debated over Season 2’s Kali (Linnea Berthelsen) and her place in the show’s story after her arrival and standalone episode “The Lost Sister.” She hadn’t returned to the narrative in Seasons 3 or 4.

Toward the end of Episode 4, “Sorcerer,” Eleven (Millie Bobby Brown) and Hopper (David Harbour) discover that Dr. Kay (Linda Hamilton) has captured none other than Kali, 008, Eleven’s “lost sister.”

“We’ve always wanted to bring her back because Linnea’s an incredible performer. We wanted to give her another chance to shine,

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