About the Book: In this cozy Japanese mystery, schoolteacher Kaede repeatedly encounters real-life puzzles and turns to her grandfather-sharp-minded despite his dementia-for help solving them. Together they tackle locked-room murders and missing person cases in a warm, master-and-apprentice partnership steeped in references to classic crime writers like Christie and Poe. But as the mysteries deepen, a quiet threat closes in on Kaede herself. A heartfelt, award-winning whodunit about living fully and connecting across generations, translated from the Japanese and perfect for fans of gentle, character-driven mysteries.