New York City

New York City is a real city in New York (state) that houses nearly the entire book of Dangerous Creatures. Not much is known about it that's different from the real New York City, but it's known that the easiest Caster doors to get to in New York City are subway stops, that alternate between different stops so they don't rouse excitement. Otherwise, it's known that there is an entire apartment building that's an illusion, made by a powerful Illusionist. The Caster tunnels are fairly close to Sirene, a Caster club, though because distance doesn't work the same way in the tunnels, it is unknown where the location actually is.