The first volume of Stranger Things Season 4 is now available.

Season 4 will hopefully bring answers to our most pressing problems, following a three-year sabbatical following Season 3: What is Vecna's name?

"Chapter One: The Hellfire Club" begins with a flashback to September 8, 1979, where we see Dr. Brenner (Matthew Modine), a.k.a. "Papa," who we last saw being attacked by the Demogorgon at the end of Season 1 at the end of Season 1.

Dr. Brenner invites Number 10 to a secret meeting within Hawkins Lab's Rainbow Room.

"Chapter One: The Hellfire Club" begins with a flashback to September 8, 1979, where we see Dr. Brenner (Matthew Modine), a.k.a. "Papa," who we last saw being attacked by the Demogorgon at the end of Season 1 at the end of Season 1.

Dr. Brenner invites Number 10 into a private room at Hawkins Lab's Rainbow Room for "additional teachings."

He keeps an eye on 10's thinking as he asks him to close his eyes and try to imagine what he's painting.

Dr. Brenner raises the stakes by asking him to find Dr. Ellis after he correctly guesses ten times.

Number 10 finds her in a room testing Number 6 after a little moment, but instantly recognizes something is badly wrong.

The first episode of Stranger Things Season 4, Volume 1 comes to a terrifying and stunning end.