Warning: This post contains spoilers for the third season of Stranger Things. Stop reading NOW (!!!), if you have not seen it yet.
• Chief Hopper wrote a letter to Eleven and Mike in Stranger Things 3 but never read it.
• She found it at the end of the third season and finally read what he wanted to say.
• Hopper is probably dead, but we never killed him or saw his body.
At an early moment of alien things 3 Chief Hopper, at Joyce's encouragement, writes a letter for Elf to compensate for the competitive conditions when he is not sure how he should deal with their emerging relationship with Mike.
As anyone who is already interested in Stranger Things 3 agrees, a large part of this third season includes the newly established father-daughter relationship between Hopper and Eleven. He still gets used to being her adapted father, and she is busy in this new relationship. But when it's time to meet the couple in person, he gives up the letter.
It was not until the season finale, after Hopper was probably defeated by the Russian upside-down machine (he's considered dead, even though both of us and David Harbor himself have our doubts), that Eleven finally finds the letter and hoo boy. This is a doozie! Actress Millie Bobby Brown said she had not rehearsed in front of the scene to make sure her reaction was as real as possible.
It was a tough season for Hop, who certainly has angry fights all year round and acts recklessly. But the letter at the end of the season clarifies a thing about him that we've always known: he may be rough on the edges, but he comes from a good place.
Fans of Reddit have also suggested that Hoppers letter to Elf could be more than just a letter. Maybe it could be a key that leads to his return. Since we did not see Hops corpse after the blast, there's a faction of fans who think they may either have jumped through the goal or been turned upside down. This would have a whole new meaning "for the sake of your poor old father, let the door open three inches" ̵
We do not know exactly if – or when – Hopper will return, but for now we can keep his letter to Eleven in mind.
At the moment you can find the full text of Hoppers Letter to El below:
There is something I wanted to talk to both of you about. I know that this is a difficult conversation, but you both care deeply about me. And I know that you care a lot about each other and that's why it's important that we push those boundaries so that we can create an environment where we all feel good, trust and are open to sharing our feelings. Feelings
Jesus. The truth is that I had forgotten what it was for so long. I'm stuck in one place. In a cave you could say. A deep, dark cave. And then I left some Eggos out in the forest and you came into my life. For the first time in a long time, I started to feel things again. I started to feel happy. But lately I felt away from you. As if you were withdrawing from me or something. I miss playing board games every night, doing three-star Eggo extravaganzas at sunrise and watching westerns together before falling asleep. I think if I'm honest, it scares me. I do not want things to change. Maybe that's why I came here to stop this change. Turn the clock back. To make things the way they were. But I know that's naive. That's not how life works. It's on the move, always on the move, whether you like it or not. And yes, sometimes it is painful. Sometimes it is sad. And sometimes it is surprising. Happy.
Do you know what? Continue to grow child. Do not let me stop you. Make mistakes, learn from them. If life hurts you because it hurts, remember the pain. The pain is good. It means you are out of this cave. But please, if you do not mind, leave the door three inches open for your poor old father.