The fourth book in the Sally Lockhart Quartet, narrated by Adjoa Andoh.
Jim Taylor, Sally's oldest friend, is engaged as bodyguard to a princess. But Crown Princess Adelaide of Razkavia is not what you'd expect. She's the slum-girl Jim has been searching for ever since she vanished 10 years ago.
Now her life is in mortal danger, and together they must battle against unknown enemies in a country where no one can be trusted.