Captain Vorpatril's Alliance (Vorkosigan Saga, #15)

Captain Vorpatril's Alliance is a science fiction novel by American writer Lois McMaster Bujold, part of the Vorkosigan Saga. The action centers on Miles Vorkosigan's cousin Ivan Vorpatril, now a captain, and a Jackson's Whole refugee called Tej. By internal chronology, the book is set a year or so after Diplomatic Immunity (2002), about four years before Cryoburn (2010).