Campaign Idea

I came up with this one a while back.  I'd love to flesh this out someday, but for now I'll just lay the groundwork.

I call this campaign, Terror of the Tarasque.  The premise is that the world was a fairytale fantasy world with kingdoms, princesses, fairy godmothers, and such.  Then, one day, frown the bowels of the earth rises the Tarasque and it begins turing that fairytale world into a wasteland.  Where monsters never existed, now thrive as the Tarasque spawns them as it makes its way across the world.
The Tarasque represents the worst horror; the world-ender, It lives only to destroy and consume.  The bits of its body that it sheds, it's waste, it's spittle, every part of the Tarasque that leaves it's body turns into monstrous creatures, which in turn continue to spawn more monsters.

Magic was always in the world, but it was fairy magic; aloof and unpredictable.  The emergence of the Tarasque changed that too, twisting the magic into a nightmare.

As with all things, the Tarasque's rampage comes to an end and it burrows into the earth to rest until such time that it rises again to finish the job it started.

The heroes of this world must follow the trail of monsters that lead to the Tarasque's lair and find some way to kill it before it rises again.

That's it.  Some day, I may run this.  Some day...