While it's through the door Rye and Sonia's quest begins, they are also presented with another mystery which Rodda's establishment of their life within Weld set up. Growing up, Rye was taught Weld and its Wall were the centre of their universe. But once out in the world he soon discovers its merely one, insignificant, part of something much larger. Things aren't as cut and dried as he'd been taught. While he goes about completing his tasks--finding his brother Dirk and rescuing him--as readers we feel his amazement at the size and diversity of the world beyond the shelter of his city.
While Rye himself is too preoccupied with his quest to begin the process of questioning what he has been taught, we're left no doubt that seeds of disquiet have been planted. Rodda is too smart a story teller to spell these things out for us, but from his reactions to what he sees and the things that happen to him Rye's world view is being shaken. As readers we begin to wonder about the real reasons behind the creation of Weld, its impenetrable wall and the amount of control exerted over its inhabitants by the Warden. Was The Wall created to keep the rest of the world at bay or to keep Weld's citizens in?
At first glance the characters of Rye's older brothers seem to be less real people and more types. However, as the story develops we realize this is because Rodda has done such a good job of telling the story from Rye's point of view. Until he understands the world more a younger brother sees his elders only in terms of their dominant characteristic and not as complete humans. As Rye's horizons expand with his travelling beyond Weld he comes to understand there's more to both himself and his brothers. He's no longer merely the younger brother who must be looked after and worried about.
With The Golden Door Rodda has created the beginnings of what has the potential to be a fascinating multi-layered adventure. Not only will Rye's quest to find his brothers and deliver Weld from skimmer attacks continue, there is also the mystery of Weld's creation and the nature of the world its located in to solve. Of course, there's also the question of Sonia and Rye's friendship. While they started off in adversity, they quickly came to trust each other and gradually earned each other's respect and friendship. It will be interesting to see how both their characters and their relationship develop over the course of the trilogy.