The Prefect was republished as Aurora Rising in order to identify it more as the beginning of its own series than as tied to the Revelation Space series. The series do share the same Universe, though this book is set in a much earlier era.
The setting is the Glitter Band, a swarm of thousands of orbital habitats around the planet Yellowstone. Tom Dreyfus is a prefect for Panoply, a police force tasked with ensuring voting rights are respected, including investigating and punishing voting fraud. The habitats of the Glitter Band are as varied as they are many, from tyrannies to utopias to all manner of strange types of government. An investigation into voting fraud leads Dreyfus and his small team to a flaw in the voting system, and then all hell breaks loose.
While the setting is hard science fiction, the plot is in large part police procedural, and the characters could have been picked from any group of archetypal police investigators and functionaries. Dreyfus himself is the stereotypical dedicated detective with a tragic past. His assistants Thalia and Sparver are, respectively, the spunky and energetic young tech whiz and the stoic, solid sidekick. His boss Aumonier is the classic experienced police chief. The trope works very well for the novel, allowing the reader to immediately grasp relationships while navigating a completely new and strange world. The plot starts as a relatively simple police mystery, but as events unfold, the magnitude of the crisis becomes vast, encompassing the entire system. The ghosts from Dreyfus’s past, and indeed society’s past, come back to haunt the present, with some clever twists.
The vignette Open and Shut, available for free on the publisher’s website, serves as an epilogue for the novel.