At the end of Season 4, Ghost Rider
opened up a portal with his chain, and took the Darkhold through it.
Where did this portal lead? It didn’t look much like “Hell,” where one might imagine he might take the Darkhold (given that it originally came from there, and he said he wanted to take Aida “home,” her own matter apparently having originated in “Hell”). It actually looked sort of mountainous.
Is there any suggestion about where he went?
Since the visual effect used by Reyes resembled the magical sling-ring portals created by Dr. Strange and other mystics, I would imagine he was taking the book to the mountain stronghold of the former Ancient One.
Update: Even after checking around, no one has been able to define conclusively where the Darkhold ends up. A number of Wikis imply the Darkhold was taken back to the Dark Dimension, but that doesn't make sense since the MCU has made the Dark Dimension extremely hard to access during the Doctor Strange movie.
While the Ghost Rider appears to have significant supernatural power, it seems unlikely he would try and move the Darkhold to a place where Dormammu would welcome an opportunity to review its pages.
Its current location remains unknown.
I think it's the same planet where Simmons got stuck. The mountains and lighting was same as per my view.
Robbie mentions other universes and worlds that would seem like hell to a human. That could mean anything. The world in question might be one that's environmentally benign but is in endless war. It could be one where ordinary beings like humans are enslaved and abused. Just think about the world Hive was trapped on. Environmentally, not all that hostile but Simmons would probably agree that it had been close to hell for her, and Will certainly thought it was before he died.
