(Unnamed so far. Taking suggestions! Will be continued later if yall like it.)
The fae, whose magic connects to life, have always been weak to the undead, whise magic connects to death. And so, there has always been strife; families split in two when a human parent is turned to a vampire or becomes a ghost, or when one makes a deal with the far their ghoul partner cannot ignore.
But thousands of years ago, peace began to seem a possibility. Ghosts and elves built towns together, pixies and shades played pranks, while vampires and harpies hunted the skies in covens.
The most forbidden, yet hopeful, proof of this peace was the banshee; a creature equally fae and undead.
And then, 2,000 years ago, Pariah Dark took the throne of the Ghost King. It's difficult to say what happened in those trying times; the humans who were there are long dead now. The ghosts, destroyed or loyal (or at least fearful) of King Pariah. The fae, too, destroyed or loyal to the Queen and King of the Seelie and Unseelie courts.
When Pariah was finally defeated, the King of the Unseelie dead, and the Queen wounded with no heir, the Realms of the Dead were sealed away from the living, as were the Unseelie lands. And thus began the Age of the Fae; humans and fae living together in harmony, the undead relegated to scary stories or the occasional, rare ghost.
Until one day, when three half-fae began working on a portal- with disastrous consequences. Not knowing the deadly results of their experiments into reaching the locked Unseelie realm, two of the three tried again. This time, with consequences most dire for their son.
Equally fae and undead; a recipe for disaster. A recipe for something not seen since the Great War. Danny Fenton had become a banshee.
