Nexus Worlds

It is important to note that while the Tanalithic Realmhead is massive and cross-links tens of thousands of worlds (realms), it is not the ONLY such realmhead. This fact goes a bit beyond the story, though Kamboolii does visit a Nexus world and uses its skeins to translate himself back to a future version of Minth in order to get closer to his desired destination.

Other than the Wu, advanced races of other cultures have also learned how to skein reality and create their own realmheads. Nexus worlds serve as a junction between these realmheads, and are usually ruled by the society that established a particular Nexus world. These places are typically advanced - far more advanced even than the Wu - and are trading hubs. There are, of course, restrictions on Nexus worlds established by their governments.