I do not know if this will help you or not but ... From 3.5 J3 the crucible of chaos is the investigation of one of the air cities. It will not really help you run a retro adventure but it will give you some insight as to how their cities were constructed and controlled. I do know that they used the ability to read wind as a means to tell the future and controlled wind to help steer . Their magic as it were is described as being magical electric in nature. I cannot give you and ref as I have been at this all week and had to piece bits and pieces from over a thousand threads across the internet . Hope that helps .. Even if it does not crucible is an interesting read and might give you ideas and it does have maps .
