boblishman wrote:errr... what exactly is a "sub-age" ... and how would I go about making one?
You are already making one by linking there with the PtLinkingRules.kSubAgeBook rule. OOC server linkingrules are even more powerful than the IC variety.

Other examples of a sub ages are Eder Delin and Eder Tsogal. They are sub ages of the neighborhood. IMO the sub age was a reasonably successful implementation of instancing. Sub ages are clean, they don't leave traces in Nexus, KI or Relto. They can be explored together without the need for book sharing and you can return together, again without book sharing. The return link uses the same linkingrule kSubAgeBook, but the server "knows" whether you are linking to or from a sub age.
There is one snag though. Never use any other linkingrule to link to an age intended as a sub age. That reverses the roles of the main age and sub age. If for example you would link to Delin as a personal age (PtLinkingRules.kOriginalBook) and then use the book that links to the neighborhood, you would create a new neighborhood instance as sub age of Delin.
