to 1988, when the technology to construct it was first built and put into orbit by the Soviets. By the time of the novel's frame story, Sadi has done this thirty times, each time changing history to his/her benefit. After Joshua's revival and a time as Sadi's lover, Joshua, who's repeatedly refused to accompany Sadi on these excursions through the singularity, (also known as a closed timelike curve), is sent by her via force on a preset course through the singularity once more. Sadi claims to have brought Joshua back in time with her before, without being revived, so she could 'help' Joshua love her as obsessively as Sadi loves him. Now she wants him to experience the freedom she's had, in hopes of having him come back to her for good. Joshua makes plans when he comes back to the late 20th century to change history himself, many times over, alone. Critical reaction Writer Jo Walton declared: "Kaleidoscope Century is one of the most unpleasant books I’ve ever read, I can hardly believe I’ve read it again. All the same it's a major work and very nearly a masterpiece... This is the most unsuitable book for children in the history of the universe... But despite making no sense, rape, murder, and a very unpleasant future, it's still an excellently written and vastly ambitious book, with a scope both science fictional and literary. That's what ultimately makes it a good book, though I do not like it." References 1995 American novels 1995 science fiction novels Novels by John Barnes Novels set in the 22nd century