The Tin Princess

Days after she witnesses a mysterious explosion in 19th-century London, 16-year-old Becky Winter is on her way to a small country In Central Europe, as a companion to Adelaide, a Cockney commoner who'd rather play board games than be a princess. But after an assassination makes Adelaide ruler of Razkavia, she rises to the occasion and her new station, gleefully playing international politics with the help of Becky and Jim Taylor, a dashing young detective.