The Curse of Chalion // Lois McMaster Bujold

A man broken in body and spirit, Cazaril returns to the noble household he once served as page and is named secretary-tutor to the beautiful, strong-willed sister of the impetuous boy who is next in line to rule. It is an assignment Cazaril dreads, for it must ultimately lead him to the place he most fears: the royal court of Cardegoss, where the powerful enemies who once placed him in chains now occupy lofty positions.