Warning: Spoilers ahead for the first season of "Dark."
The first season finale of Netflix's first original German series "Dark" likely left a majority of at-home viewers with their minds simultaneously blown and full of questions. We've already done a comprehensive breakdown of everything we know about the mysterious Noah and Claudia, but now let's turn to unanswered questions.
Keep reading for a look at the 27 biggest open-ended mysteries left after season one of "Dark."
Why did Mikkel/Michael kill himself? What was Jonas supposed to understand based on his suicide note?

Mikkel is still a very mysterious figure in "Dark." Jonas refers to him being "sick" in the years leading up to his life — is it possible that seeing himself be born and grow up drove him to a mental brink?
But how did he come to create that map of the caves? And how did he learn the exact moment of his disappearance?
Why did Mikkel appear covered in ink or oil every time Jonas saw him in dreams or visions?

Jonas saw his father, Michael (the adult-Mikkel) three times over the ten episodes. Each time it appeared to be a vision or dream, and his father was covered in streaks of black liquid. It might have been paint, since Mikkel seems to have become an artist, but what is the purpose of this symbolism?
How did Mikkel get to 1986? We saw him emerge from the caves but never saw him enter them or the door portal.

When Jonas and Mikkel were running through the forest, Jonas fell down and lost sight of Mikkel. Where did he go? Did he run back to the caves? Or did someone like Helge grab him and bring him back into the caves? If that's the case, why would Helge have let him go once inside the 1986 cave? Why not bring him to the bunker?
If it wasn't Helge, is there a second wormhole portal in the woods?
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