I think that we will have to agree to disagree here.
An unchanging guardian sounds very boring to me. After centuries of existence I would say that the guardian would change as the city changes.
I view the guardian more like an 'esprit de corps' of its citizens and the city's ruling council.
I think it will grow and change to reflect the city. The guardian could be a snapshot of the current state of the city.
Darran
Powered by hypermail