Megapolisomancy:
Megapolisomancy: the magic of metropolises:
A term invented in 1890 by Thibault De Castries, in the "forbidden" book: Megapolisomancy: A New Science of Cities

I had to discover what all this meant, at any cost.
Was it a mind game that made you see cities with different eyes? Or was it a secret reality, something forbidden, something no one talks about?
No one knew anything about all this. No one except me...
Above all, it was an eccentric chimera. A new great mystery, a new art or a new science. I don't know if I really wanted to become its prophet, but the City Hunters and the ghosts of some of my favorite authors trapped me in its visions.
Mysteries are never revealed to seekers, their mysteries watch them from the shadows as they walk through the city, the Paranoid Entities know that you are looking for them, the metropolis knows that you are lost in its titanic cryptogram. It sees you with countless invisible eyes. The metropolis watches me, it is alive, it knows that I am spying on it, it knows that I went out for the great and mysterious patrol...
I will explore all the secrets of Megapolisomancy. If I manage to find the way out of this labyrinth, I will reveal its map to everyone... If not, I hope you won't have to search for me as much as I searched for the Black Pythagoras. Maybe you will see me wandering through the city, unknown among strangers. No passerby will be able to imagine what I am preparing...

A new urban metaphysics for the 21st century. And at the same time, a new genre of novel, the fantastic literature of the new millennium.