Crossover Fan Fiction

Weird idea I had after some discussion of the "Xander's 'Evil' Twin" episode of Buffy, which might be applicable to other fandoms.

There's an idea called Twin Towns, which began in Europe after WW2, in which two cities of roughly the same size and similar interests (e.g. industrial towns, mining towns, etc.) are "twinned" with each other. Typically they are in different countries, and the general aim is to promote peace, education, etc. For example, Cambridge (UK) is twinned with Heidelberg in Germany and Szeged, Hungary. The web page below explains the origins of the idea. Usually twin towns exchange cultural stuff (museum exhibits, sponsor orchestra visits, school trips, etc.), offer opportunities for natives of the other town to visit for educational reasons, host members of the local government while they study common problems (traffic, crime, pollution, public transport, etc.), and so forth.

This idea has spread beyond Europe, and some cities in the USA etc. are also twinned. For example Passau, in Germany, is twinned with Hackensack, New Jersey.

All of which leads me to the idea that Sunnydale might be some innocent city's evil twin - or have an evil twin that is even worse in some way. And of course this could apply to other fictional towns such as Smallville, Seacouver (or is that a real place?), Metropolis, etc.

I'm sure that there are plenty of ways to use this idea in fanfic, especially in a crossover. I'd particularly like to see something based on a BtVS crossover, but I'd also be interested in seeing the idea used for other genres and crossovers.

http://www.fact-index.com/t/tw/twin_towns.html is a web site explaining the idea.

There are lots of other web sites mentioning twin towns and giving examples.