Stranger Things Spin-Off Will Answer 1 Big Remaining Question

This article contains spoilers for Stranger Things Season 5, including the finale, and the stage show, Stranger Things: The First Shadow.The Duffer brothers have confirmed that the upcoming Stranger Things spin-off will fully address and explain the purpose of the mysterious rock in the briefcase obtained by Henry Creel in the flashback sequence during the Season 5 finale.Some Stranger Thingsfans were left with more questions than answers regarding the briefcase rock following the series finale, but they can rest assured that all will be addressed in good time.