The young Asa joins the Yggdrasil project. He shows himself to be a smart man with an endless curiosity to learn. He moves up the ranks quickly as first a peregrinus those agents are responsible to monitor and control the tribes in the Erthring. He successfully manages to bring the Yuloks back to following the rules. Things though are starting to change. Yggdrasil is running toward the end of the two hundred years the founders gave the project. Supplies are dwindling. Tribes from outside the Erthring are assaulting the borders. There are those who want to abandon the project and turn to the old ways that destroyed the planet.
A riddle left by the old ones in the form of locked vaults is solved. It reveals that there is another Erthring in South America. The Erthring is called Xtaplacia. An expedition is mounded to visit. They find a gleaming city on top of a plateau. It is inhabited by people who have abandoned the project and live a life of decadence dedicated to music. Disappointed Asa returns and upon hearing of the location of his wife Persis he abandons his position and heads out to the outer wylds. He finds his wife in time before she dies and the son that he never knew he had. He is met at the end by his friend Alva who has come to inform him that he has been made the Master of Norriya head of one of the administering districts in the Erthring.
The second in the Erthring Cycle trilogy. In this one we learn more about Yggdrasil. It was founded by a rich man named Tuperman who recruited six other millionaires and formed the project. It is lavishly supplied with helicopters and submarines and a supercomputer. All to keep the local tribes down while scholars spend time to research how to make humans one with the Earth. Obviously the whole project is one big waste of time. Interesting the South American Erthring took the other extreme action and is destined to end at the same place as Yggdrasil. Tuperman seems like some crazy moonbat with delusions of grandeur. He devised these riddles that opened vault doors to parcel out information and named the place after Norse mythology. This is such an interesting well written book. You do want to find out how it ends even though you know its not going to end well.