Now she's written a novel which is not a mystery and is a considerable departure from her previous work.她现在创作了一部非推理小说，与她以前的作品大相径庭。He is the author of several murder mysteries.他写有几部凶杀推理小说。This book is a classic of the mystery genre.这本书是推理小说的经典之作。That's a staple plot in mystery novels.那是推理小说中的常用情节。