At some point in time our universe has bifurcated into Universe A and B. Each universe now follows a different set of rules and the main character Felix A is taken on a wild ride as he makes the crossing to Universe B. He faces the consequences of the changes in the alternate universe as he explores his relationship with the people he meets there.
The main character was easy to relate to and the explanations and analogies where interesting without being condescending. An interesting read if you like the combination of science, fiction and adventure.