And then?

After a few pages, the reader finds himself in the universe of Riding the Crocodile. The idea dexplorer deeper this universe is friendly although the ability to materialize anywhere is doubtful and nest supported by any scientific explanation unlike lusage at Greg Egan.
The discovery and construction of the principles of relativistic mechanics by Zak and King from their asteroid is exciting, explained intuitively without any form (even if i wanted to marrêter to make calculations with them).
Alongside their efforts to survive a galactic catastrophe (with social transformation and rapid mobilization of the asteroid habiatnts that do not seem too realistic) it follows that Rakesh has been on the track of this small inhabited world and leads a little too easy investigation through the intervention of the seemingly omnipotent Aloofs. And ???
Nothing. It has two parallel stories that never intersect and end fishtail. A clumsy attempt to prepare a sequel? In any case, I do not lachèterai!