What is the Discontinuity and who is responsible for it? What was its purpose?

Who are the two most powerful forces remaining after the Discontinuity? They are both drawn to the same place. Where is that place, and why were each drawn there?

Bisesa is unwilling to tell Ruddy anything about his future as she knows it. Why? What are the possible consequences in her mind and are her fears legitimate?

What do the Firstborn come to realize in the end and what do they do about it?

After their initial landing, several things change in Sable. What are they, and what are the consequences of these changes? Who tries to stop her and how, and what are the results of these actions?

What are the most obvious things missing after the Discontinuity? Speculate as to why so few of them remain?

What are...