The Citadel 2, by voyen

Adventure ID = 134
Date Submitted = 2001-12-13

Author's Description:

Having previously been forced to fight your opponents from Poseidon City and the pre-sand Sahara, you don't feel safe on the land you presently occupy.
An advance party has found the ruins of an ancient city that was probably built by Lemurians, the civilization of magicians that preceded your own, Atlantian.
A perfect spot for the new Citadel?
Four parent and two colony episodes.