The novel “Mirror Dance” by Lois McMaster Bujold was published for the first time in 1994. It’s part of the Vorkosigan saga. It won the Hugo Award and the Locus Award as the best science fiction novel of the year. It was also published in an omnibus edition titled “Miles Errant” together with the novel “Brothers in Arms” of which it’s a sequel.

The clone created to replace Miles Vorkosigan in a political conspiracy abandoned that project after rebelling against the people who created him. The name Mark was given him by the Vorkosigan family after his existence was discovered but he keeps away from them. Instead, he wants to return to Jackson’s Whole, where he was created, to save other clones whose bodies are to be used to transplant in them the brain of the lords of the planet.

Mark poses as Miles but only as his alter-ego Admiral Naismith to take control of his fleet and with a team make a surgical strike in the Jackson’s Whole facility hosting the clones. The plan doesn’t go as predicted so Mark and his soldiers are under attack. Luckily for him, in the meantime Miles discovered the deception and located his clone so he comes to the rescue with other ships of his fleet but he’s killed. At that point the situation becomes very complicated for Mark.