🔗 Share this article

For much of the concluding season of *Stranger Things*, Holly Wheeler and Max Mayfield are held captive in a realm of memories constructed from the memories of the villain Henry. Their mission for a way out in episode 6 leads them to experience a defining event from Henry's childhood—an event that potentially carries the key to defeating him once and for all.

Heads Up: This discussion reveals crucial plot points for *Stranger Things* season 5, volume 2.

A Journey Into the Mine Shaft

When she finds Max in the world known as Camazotz, it becomes clear she is taking refuge in a chamber that Henry strangely fears. An accidental discovery a viewing device found in Henry's old home helps Holly understand that the source of fear lies outside of the cave. Matching her view through the cap, she and Max plummet into a abandoned tunnel.

They watch a Henry as a boy find an injured and paranoid man. When Henry tries to help, the man reacts violently, striking Henry in the hand. In a desperate act of self-defense, Henry strikes the man down with a rock. "Is this what corrupted him?" Holly questions through tears. It was a factor, but the act went deeper than a fight for life.

Like many elements of the final season, the truth about the mine shaft incident originates in the live show Stranger Things: The First Shadow.

A Naval Mystery and Secret Science

The play reveals the legendary naval test, which allegedly sent a vessel into a plane later called the Abyss. The ship was attacked, and the only one to return was the ship's commander, who returned in a catatonic condition with an different blood composition.

This man's son, the future Dr. Brenner, attempted to recreate this phenomenon in Nevada. But a disloyal lab worker pilfered lab samples to hand over to the Russian agents, who were eager to begin their own interdimensional projects. That traitor in the tunnel was that very thief.

The Briefcase's Contents

Based on what is revealed about the doctor's experiments, the container almost certainly contained some of the unique blood type. At that moment, Henry is already bleeding. Exposure likely occurred upon opening the case, leading to the awakening of his powers—abilities he would later pass on to the test subjects under Brenner's care.

Another possibility, the box could have held strange particles that later made its way to the Hawkins lab, where it helps stabilize the Upside Down. The prequel shows that Henry was transported in the Abyss, reappearing 12 hours later fundamentally changed. From then on, he struggles with the whispers of a malevolent force, similar to how the character Will was influenced by the shadow monster in the past.

A Weaponized Emotion

His lasting fear of that cave demonstrates how deeply scarring the incident was for him. Even as he orchestrates the army of monsters and works to collapse the Abyss into Hawkins, a piece of the scared boy lingers. Fear is his tool, and the show is setting up a climactic battle between the monster and Will, who has deliberately faced his personal demons to become stronger.

His confrontation has effectively disarmed Vecna. Crucially, Will now knows what Vecna himself fears, which could provide a key upper hand in the ultimate battle to come.