Ancillary Mercy

Fleet Captain Breq Mianaai, once the troop carrier Justice of Toren, holds Athoek Station while the Radch empire tears itself apart. The tyrant Anaander Mianaai, who rules through thousands of bodies and is now at war with herself, is closing in. Meanwhile Breq's crew finds an unexplained ancillary from a ship lost for three thousand years, a Presger Translator arrives with its own unsettling agenda, and the station's AI has to decide whose side it is on.

Ancillary Mercy, published by Orbit in October 2015, concludes the Imperial Radch trilogy begun with Ancillary Justice and Ancillary Sword. It is a space opera concerned with personhood, loyalty and what an artificial mind owes the people it serves. It won the 2016 Locus Award for Best Science Fiction Novel and was a finalist for the Hugo and Nebula Awards.