The 'Indestructible City', also abbreviated as the 'IC', is a Human
settlements|human settlement introduced in Dragonslayer. It lies near
the mountain range splitting Pyrrhia and bordering the Kingdom of Sand,
by the Winding Tail River. It sits on a cliff and is described to look
like a city in the sky. It is ruled by the Invincible Lord.

## Description

The city is near a bend in the Winding Tail River, north of the
Rainforest Kingdom, and west of Queen Moorhen's lake. Unlike most human
settlements, it is not hidden away.

The Indestructible City is built halfway up a cliff overlooking a forest
and towers far overhead, sheltered by a huge overhanging ledge. It is
placed so any dragon would be visible for miles in any direction. Cave
entrances dot the cliffside and odd structures are carved out of the
rock. One way of entering the city is by an "endlessly long" set of
stairs that had been chipped out of the cliff face, cutting back and
forth on a path into the sky, now worn smooth and slippery with no
railing to keep someone from tripping and plummeting off the cliff. The
second way is from a contraption designed for rising and lowering heavy
goods and humans in and out of the walls. A wall of thick stone runs
around the edge, ending at the cliff on each side. There are several
gardens over the city. Guards protect the tall, narrow stairs that lead
to the city on the top of a cliff. A waterfall cascades down the cliff,
not far from the city walls, with waterwheels out in the spray to
collect the water.

Wagons, tents, and rugs are spread over the ground. Families sleep in
huddled piles far back in the cliff, and some stir pots over campfires.
There are markets for trading, clothes, and medicine. There are also
clowns in the Indestructible City.

The Indestructible City is said to be one of the only scavenger cities
to fight back against dragons. The Invincible Lord ensured that there is
no room for refugees outside of the city, and that all orphans or
wanderers are stamped, turned over, and firmly kept inside the city.

## Notable features

### Defenses

The Indestructible City is mentioned by Rowan and Undauntable
to utilize "massive dragon-fighting catapults." All the guards wear
boiled leather armor covered in spikes to make it harder for a dragon to
pick them up and carry them off.

It also has a large wooden contraption called a ballista that is fit
together with rope and metal. The pointed end of its spear slides into a
slot in the stone wall and pokes out of the outer side. The spear is as
long as a dragon, and was activated by a torch, shooting a flaming
projectile at targets.

## History

### The Jade Mountain Prophecy

#### Winter Turning

The scavenger den that shot at Qibli and the others was the
Indestructible City.

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### Legends

#### Dragonslayer

The Indestructible City was first mentioned by Rowan when she recalled
the legend of the Dragonslayer. Wren and Sky visited the city to trade
Sky's rare scales for books, clothes, and other useful things. Sky
stayed hidden while Wren does this. The prince of the city, Undauntable,
gave Wren silver pieces in exchange for the scales. Later in the novel,
the city was the main site of General Sandstorm's attack to find Oasis'
treasure.

## Trivia

  - Despite the Indestructible City being larger than most scavenger
    dens and even having a large castle, in the first two arcs of the
    mainstream series, it is labeled with an image of a farm instead.