Is Will Byers Still Connected to the Upside Down in 'Stranger Things'?

Will Byers has been a major player in 'Stranger Things' since the very first episode. Now it looks like he could also play a part in the series' conclusion.

Stranger Things: The Upside Down Parallel Universe, Explained - Thrillist

Stranger Things Upside Down: Everything We Know So Far, Explained

We're all living in the Upside Down: Stranger Things is a show about the internet's dark sides

Stranger Things' Will Byers: 9 Key Events In The Characters History From Seasons 1 Through 4

Will Byers, Stranger Things Wiki

Stranger Things' Parallel Universes Explained by a Scientist

10 Best 'Stranger Things 4' Part 2 Theories - PureWow

Fisher-Price enters the Upside Down with 'Stranger Things' Little People set

What Is the Upside Down? - How Did Will Byers Get Into the Upside Down?

Stranger Things: How Will Survived The Upside Down

Stranger Things season 2: a guide - Vox

Top 10 Darkest Stranger Things Moments