Tiers: The tiers of city are classified by how recently they’ve been formed. Every five years, a new tier is considered complete and will be entitled as 'first tier' and every other tier will grow down one designation point from there.
People inhabit the first, second, third, and sometimes the fourth tiers of city ( depending on how populated that sector is). The oldest tier is currently the eighteenth and will become the nineteenth in two years. No one lives that far down the tier level, everything beneath eighth is considered ghost town and everything between fifth and eighth is only for the poor man.

The inhabitants: All inhabitants are humans along with their ‘curiosities’, which are like their pets. These curiosities can range from anything from a typically small, four legged, furry creature, to one of the 'moths'.

Moths: A moth is our central subject; all moths are viewed as a lower life form to 'city' subjects, but they are in fact a 'primitive' culture of humans who live in the prairies, forests, and river/ ocean caves that surround the expanding city. They tend to wear little or no clothing and all have small wings on their back that don't allow them to full out fly, but to glide. Moths are extremely in tune with nature; they live and think simply, and move peacefully around city, avoiding it but not fearing it.
Moths are often captured and sold as curiosities to the richest of the cities inhabitants; it is said that the current tier queen owns a menagerie of more than twenty.

The tier queen: One physically beautiful woman is selected every five years as the tier queen, seemingly with no rhyme or reason. The new woman is engulfed by spindle spiders and carried away. She will emerge several days later and rise to take the position away from the old tier queen, who will be ignored as she is dragged away screaming by the spindle spiders.

Spindle Spiders: Not really inhabitants of city seeing as they are more commonly considered to be just an extension of city. They cannot pass city limits, and they permeate throughout city, even through the abandoned tiers.
They carry out menial tasks essential to the inner workings of city, sometimes for seemingly no reason at all. They are also the only workings of any sort of law enforcement. This is a sticky net though, for there is no set list of laws, and at any time without any explanation, a spindle spider may take away any citizen.
Spindle spiders also handle the dead. They take away all deceased within one half hour of their passing and the body will never be seen again.
All Spindle spider movement occurs in dark, sewer like tunnels beneath the surface of city. These tunnels have black circular openings that are scattered throughout city. These circles will not open for anyone but a spindle spider, but will open immediately whenever a spindle spider comes near.
Spindle spiders have eight legs and round bodies. Spindle spiders are metal, spindles spiders range in color from pale silver to black. Spindle spiders are not to be resisted.

FAQ:
1A. How does city grow?
1Q. It sends down 'bones' deep within the earth. These bones are broken remnants of older parts of city. (It is rumored that city collapses in on itself in the center and fills it's gaps with human bones.)
When ‘city’’s bones (pipes and struts and foundations etc.) have burrowed deep enough, they devour the earth and rip raw materials from the crust and sometimes even the mantle to thrust up towers around the cities edges. (this is why there is a standard five year waiting period for tiers to grow, for humans can't be sure when and where city will send up a new tower).
When city is done sending up towers for a time, city will create ‘skin’ of an outer layer of brick or glass or iron or clay or whatever resources are available to form a suitable cover. This is called ‘web’, and the bones filter up the proper materials, which then will jump between towers and cover them evenly.
City will hardly ever build a whole tower in a single year. It takes normally at least five years (sometimes it’s double wide at ten years) for a proper tower to be completed. Any tower that takes longer is a ‘flux’ or a ‘yellow zone’. Any tower that is a connecting way or something else that requires less width is called ‘needle’. Both are not really common, but not so rare that it causes any sort of disturbance when they occur.

2Q: Is City natural to this planet? Where did city come from?
2A: That’s for me to know and you to probably never find out

3Q: What are spindle spiders?
3A: Well, its more complicated than just a quick explanation, but their sort of like small robots. They have eight tentacle like legs, small round bodies, and no distinguishing features of any kind. They are metal and their colors range from very light and silvery to completely black. The people believe reason for color discrepancy must depend upon when and where the spindle spider was created. City always uses the materials at hand, so spindle spiders will not always be made of the same metals.
To put it in over simplified terms, they’re city’s minions. They do everything for city and anything for city. They do not think, they have not ever been captured nor studied. They are city’s, and they are not to be interfered with.

4Q: Is this earth?
4A: No (but it is an M class planet - lol *nerd moment*)

5Q: Can I read the story?
5A: No.

6Q: Why?!
6A: Because I don’t like you.

7Q: Wha!? Really? *cries*
7A: NO, not really. The truth is, it’s still in the beginning stages of formation. Don’t expect anything in the way of a concrete storyline for quite sometime



Essential points:
CITY USES WHATEVER IT CAN
CITY RECYCLES EVERYTHING