Royal Gambit — Daniel O'Malley

From the brilliant and hilarious author of The Rook, a delightful new supernatural adventure: When the heir to the British throne suddenly dies under mysterious circumstances, Checquy operative and reluctant aristocrat Alix is assigned to be lady-in-waiting/personal bodyguard to the new Crown Princess, and must navigate the halls of power and privilege while investigating the supernatural murder of the Prince of Wales.
 
Alexandra "Alix" Dennis-Palmer-Hudson-Gilmore-Garnsey, the twelfth Lady Mondegreen, has never had any control of her life. Her supernatural ability to shatter bones with a touch made her the automatic property of the Checquy, the secret British government agency that deals with the supernatural. Her aristocratic ancestry made Alix the perfect asset for the Checquy to deploy close to the royal family. Since childhood, Alix has been coached to befriend Princess Louise, second in line to the throne, but despite all machinations, the two have never been close. Now an adult and a full Pawn of the Checquy, Alix is a skilled investigator unravelling supernatural manifestations for the security of the nation.
 
Everything changes when Louise's brother, the Prince of Wales, dies abruptly, and all signs point to an unnatural assassination. To protect Louise, the new and unwilling heir apparent, Alix is assigned to be her lady-in-waiting. Thrust into the limelight overnight -- both in the everyday world and in the underground world of the Checquy -- Alix must juggle her responsibilities and her loyalties as she attempts to unravel the murder, keep Louise safe, and learn how to smile graciously while eerie threats loom around every corner.