There is a towne for the Mad Mage's Maze that serves as a quest hub.
Fictionally, it is a remote abandoned camp used by a cadre of thieves.
Since it's part of Alterra proper (and not a remote alien planet) you don't need a pet to access it.
The camp's Auction stone is only accessible to those who have completed the story line. No other municipal facility exists or is planned for the area.