This is the latest book in Megan Whalen Turner's
the Queen's Thief series, but not, I am told, the last book of the series. After following Eugenides's adventure in the first three books,
A Conspiracy of Kings is mainly told from the point of view of Sophos, Gen's friends and the heir to Sounis, who is missing (literally) in
Queen and
King. Sophos' uncle who was Sounis is dead, and now Sophos has to claim his title to the kingship of Sounis, but that won't be easy, since Sounis is overrun by rebels and has to deal with fighting from Attolia.