Far upon Fell Nängoroth, the black summit, there is a single door. That door is enrobed and chained to the ground, and was never meant to be opened. Not after what happened last time, before Nightmare Moon's genesis. For one thousand seven hundred years, there have been Keepers. And the Keepers are not about trying to keep it closed -- though this was the original purpose of the order -- they wish to open it. However, the enchantments on the cursed door are many and unbreakable by normal means, for each enchantment is bound to the body and life of its creator, Princess Celestia.

The Keeper, to open the door that leads to the dreams of whomever frees the Elder God imprisoned beyond it, needs to break these wards.

This is the End of Immortality. And there isn't a thing anypony can do to stop the timeless machinations of Avelli now...

Credits to Awesome People: Title help from BaryonBrony; thank you so much! Critique on Silver by Elric of Melnipony; thank you as well! And also, Iretis Fox for forcing me to actually rewrite this bloody thing.