The World ends today. Long live The World.
In case you missed it, it appears the end of the world missed us, which is fine by my reckoning. It did get me thinking tho'.
What if there were some end of the world doomsayers in my current AD&D campaign? Not a majority of the population, but a sizable minority - an End of the World Cult if you will. Add a few minor nobles into the mix as believers (or perhaps even better, as "pretend" believers manipulating events behind the scenes). Throw a few "The end is Near" kooks at the PC party as an urban "random"encounter, then gradually turn up the volume as the supposed event gets closer.
Heck, maybe there actually IS a power manipulating events from the shadows, steering the world to it's premature end. Can the heroes prevent this from happening? If they fail, do I have the proper plan to destroy the world in a memorable way? There is nothing worse than an anti-climatic end of the world ;)