I don't know how much the dragons featured in the first visit there - that was well before my time. The one I was on was focused on a dragon that was serially kidnapping and impersonating people.

Turned out that was because she'd laid eggs under the city and wanted to give them a chance to hatch. With the Illuminants gathering there again, there was enough ambient magic around for all the eggs to hatch at once. And there were hundreds of them.