As punishment for opening Pandora's Box and unleashing all evil unto the world, Pandora is banished to a cell under an ancient castle for the remainder of her life. Reassured by her capture, the world settles down, relying on the only thing it has left to stay alive: hope. Hope that one day it will return back to peace.
Now, thousands of years later, Pandora's cell is suddenly found empty, with no trace of her anywhere. The hope remains, hope that she will be captured again and that the world will not be doomed, but for how long? Where is Pandora, how did she escape, and what horrors will she unleash this time?
Thank you to @hippopotamidae for this description!
Their book: 'The Inevitable Demise of the Immortal Man'