Threats from Outside
From Shadow Academy
On an almost daily basis, the Shadow Academy faces what it considers "mundane" threats - rampaging ghosts and demons, vampire nests, werewolf attacks, even the occasional alien invasion - are all considered "just another day's work" for the Shadow Academy's Operations Branch.
There are, however, some threats to the balance of the two universes that are so insidious, so well hidden and so far-reaching that their presence is a constant threat to the purpose and aims of the Shadow Academy. These hidden conspiracies - sometimes known as the Invisibles - fight a nearly endless war with the Shadow Academy, seeking to destroy not only Earth itself - but everything that the agents of the Academy hold dear.