Synopsis: That's right, someone is actually writing a full-length The Ugly Barnacle! We're going to learn who the titular barnacle is, how he came to be so ugly, and how his disgusting visage heralded the apocalypse and the death of every living creature in the world. Word of God says here that "the barnacle's ugliness [will cause] nothing less than the Metaphysical Annihilation of the Universe."
Tags: VERY likely to become a Dark Fic, due to its Foregone Conclusion. We know everyone is going to die; really the only reason we're reading the story is to find out how.