Advice Request: Inquisitor's Book Shows Him A Whole City! Now What?

[Pax Veritas]

Hey Pathfinder peeps,
In my Pathfinder RPG game, when the player of the Inquisitor (L13) looks at his sacred book, chained around him, he sees the vision of not an evil person, but rather a map of a whole city!

Question: Without knowing all the details of the campaign, if the Inquisitor's god indicates the whole city is corrupt and must be destroyed, can you provide some creative advice on story line options?

Example of advice I'm looking for in two parts:
Meaning - The city is run by diabolists or a demon worshiping syndacate of evil merchants.
Solution - The lawful Inquisitor and the PCs must bring down the syndacte rulers that has corrupted the entire city.

Another Example:
Meaning: The city must be destroyed and all its people, every last man woman and child.
Solution - The LN Inquisitor PC, in the name of his LG god, sets about poisoning the water.

What other imaginative advice options can you think of?

[Caedwyr]

Pax Veritas wrote:

Hey Pathfinder peeps,

In my Pathfinder RPG game, when the player of the Inquisitor (L13) looks at his sacred book, chained around him, he sees the vision of not an evil person, but rather a map of a whole city!

Question: Without knowing all the details of the campaign, if the Inquisitor's god indicates the whole city is corrupt and must be destroyed, can you provide some creative advice on story line options?

Example of advice I'm looking for in two parts:
Meaning - The city is run by diabolists or a demon worshiping syndacate of evil merchants.
Solution - The lawful Inquisitor and the PCs must bring down the syndacte rulers that has corrupted the entire city.

Another Example:
Meaning: The city must be destroyed and all its people, every last man woman and child.
Solution - The LN Inquisitor PC, in the name of his LG god, sets about poisoning the water.

What other imaginative advice options can you think of?

The city was constructed upon a well of corruption (think the Hellmouth and Sunnyville from Buffy the Vampire Slayer)

The city is all built out of the same material (bricks, stone, etc and something evil and corrupt got into the materials the city was built from.

The layout of the city hides an evil sign (the major streets form the shape of Asmodeus's holy sign) which has been obscured by additional development, but the original corruption is still there.

[Nebelwerfer41]

The population of the city will soon elect or coronate an evil ruler that will start a great war. Without their popular support, he will never come to power.
Solution - wage a war of disinformation.

[tonyz]

A major demon lord is on his way. The inquisitor's book is being prophetic, picking up the giant evil aura that's about to arrive. The PCs need to find the gateway through which he is arriving and shut it, or perhaps disrupt the ritual that is summoning him. Perhaps some of the PCs' past actions were minor contributions to the coming doom...

[Telodzrum]

The hands of the city's rulers are being forced by the machinations of the leaders of several powerful guilds and organizations in the city's social and political structure.

The party must defeat each of these shadowy hands or bring their treason to light.