The Kingdom of Britwold is steeped in tradition. Tea and cucumber sandwiches, legal corporations and the royal navy, races and hats, orange jam called only marmalade and eaten for breakfast… When Dowager Countess Thornfield discovered that at breakfast she was served an entirely wrong kind of marmalade—one she wasn’t used to—she was shocked. And even more so when she learned that the woman who had been making that very delicacy had suddenly and mysteriously disappeared. The lady realized she would die if she didn’t figure out what was going on. Polina Razumova, nicknamed Miss Mind, got drawn into the story by accident: she came to Lyundenwick for a conference on mathematical methods of spellcasting and discovered that her friend had vanished without a trace. By all the traditions of life and adventure, could these ladies really not meet? And if they did meet, will there be, in Lyundenwick—indeed, across the entire country and even the world—someone who can stand up to this staggering duo of troublemakers?