I played through Oblivion recently to prepare for Skyrim.
What I still can't figure out is that from the very start of the game, it's made abundantly clear that Mehrunes Dagon and other Daedra are no longer held back by the barriers between Oblivion and Mundus (Tamriel) because the Dragonfires have been extinguished with the loss of the emperor, and that an heir to the throne wearing the Amulet of Kings is the only way to relight the Dragonfires which prevent the Daedra from creating long-lasting portals to the realm.
And yet, when the main quest is complete, there are no dragonfires, there is no Emperor, and there is no Amulet....
How exactly does Martin seal these barriers shut permanently?
I realize that his blood (the blood of an emperor) combined with the the Amulet (the blood of Akatosh) and that's how he was able to take on the form of Akatosh and defeat Mehrunes Dagon, but isn't that more or less just sending Mehrunes back to his realm? And what about other Daedric princes, what holds them back?
Thanks,
Dan O.