From publisher blurb:
SHADOW DWELLERS
You will never see them coming. The domicile hail from the Nul-Sphere but live in the shadows all around the world. With the ability to turn their physical form incorporeal when in shadow, they are hard to see and even harder to catch. All of these capabilities make the domicile deadly thieves or assassins, the most common profession. If you have one on your side, consider yourself blessed - because to have one against you is deadly. There are no known cities or towns created or inhabited fully by the domicile, but there is rarely a city or shadowed place where they don't lurk. While not social by nature, many of them have a curiosity about how this plane functions and will reveal themselves to select people. If you're seeking domicile for information, a allyship, or as a hired assassin - expect to pay, but you may be able to barter information or trinkets.