The Hush is essentially international magical police – and they’re fairly scary.
Here’s what Katie has to say about them in Half-Shell Prophecies:
The The Mythos refers to six of the Seven Peoples of the Earth, i.e. the Sun and the Darkness, the Guardians and the Dream, and the Fey and the Kin. "Among the Mythos, who are you?" is the standard greeting, regardless of language. It's a polite way of inquiring the other's heritage, which then gives the one who asked some idea... does have magical police. They look different from world to world, from country to country, kingdom to kingdom, and People to People. But across worlds, across dimensions, over all government and jurisdiction, law enforcement takes only took one form: the Hush.
The word originally came from some ancient word meaning sweeping or keeping clean, but over time, it morphed as words do—and at least in English, included the finger-to-the-lips gesture of silence.
The Hush scared the crap out of me.
Yes, there are other self-policing groups out there; mess with the Shapeshifting people who resemble jaguars. Like selkies, they remove their animal-skin to appear human. Their preturnatural senses make it seem like they have eyes in the backs of their heads, and high intelligence makes them absolutely excellent in law enforcement and spy-work. Even though they're based in the human Earth, their nocturnal habits and voracious appetites qualify them as People of... of South America or the A shapeshifting being from Kenya, the Zimwi are people of the Darkness who transform from humanoid to leopard-like creatures. They have enormous smiles and magical drums in which they can store just about any amount of food, which is good because their appetite is even bigger than their teeth. They make a brutal police force, and while they aren't particularly... of Kenya and you’ll find out really fast just what kind of justice they serve. But the Hush are inter-world; they’re multi-government, legally empowered across the board, committed to the single purpose of making sure the humans don’t know we exist.
The Hush are very organized. They accept anyone from any background, regardless of past or ancestry, and proceed to strip them of their personal identity to make perfect police. They usually do NOT err on the side of grace; they’re also rarely wrong, though when they are, it’s pretty much impossible to overturn a conviction.
Of note, members of the Hush are generally above reproach in every way; think of them as lawful good. Salis Kamialfaod is a half-troll member of The Hush, and the primary protagonist of the short story, NO REPARATIONS ARE EXPECTED AT THIS TIME. He had a brief run-in with Katie Lin and a startling revelation at the hands of Notte...., a half-troll recruit, is one of its more typical members.
Lord-General Ramses Al-Benumm tá Oman is a member of The Hush. He had a run-in with Katie Lin resulting in the disastrous consequences (for him) laid out in the tale NO REPARATIONS ARE EXPECTED AT THIS TIME...., on the other hand, is somewhat less typical, as Name meaning: Night (Italian - he picked that one) Other names: Naktam (sanskrit); Night-child; Nox Eterna; the Blood King. He's probably the oldest living creature among the Mythos. The father of all vampires (or Night Children, as they're called), he's a mystery; no one knows where the heck he came from, or who made him. It says a lot that... ensured Salis would find out.
Want to know more about this? Check out the short story, NO REPARATIONS ARE EXPECTED AT THIS TIME.