Ancillary Mercy. Imperial Radch

Ancillary Mercy is the stunning conclusion to the trilogy that began with Ancillary Justice, the only novel ever to win the Hugo, Nebula, and Arthur C. Clarke Awards. For a moment, things seemed to be under control for Breq, the soldier who used to be a warship. Then a search of Athoek Station's slums turns up someone who shouldn't exist and a messenger from the mysterious Presger empire arrives, as does Breq's old enemy, the divided, heavily armed, and possibly insane Anaander Mianaai - ruler of an empire at war with itself.
Breq could flee with her ship and crew, but that would leave the people of Athoek in terrible danger. Breq has a desperate plan. The odds aren't good, but that's never stopped her before. The Imperial Radch trilogy begins with Ancillary Justice, continues in Ancillary Sword and concludes with Ancillary Mercy. Also available now: Provenance is a stunning standalone adventure set in the same world as Ancillary Justice.
NPR calls it 'A fitting addition to the Ancillary world'. Praise for the trilogy:'ENGAGING AND PROVOCATIVE' SFX Magazine'UNEXPECTED, COMPELLING AND VERY COOL'John Scalzi'HIGHLY RECOMMENDED'Independent on Sunday'MIND-BLOWING'io9.com'THRILLING, MOVING AND AWE-INSPIRING'Guardian'UTTER PERFECTION'The Book Smugglers'ASTOUNDINGLY ASSURED AND GRACEFUL'Strange Horizons'ESTABLISHES LECKIE AS AN HEIR TO BANKS'Elizabeth Bear