Constance Marchand is not at all like her eccentric artist father: she is far from creativity, does not believe in fairy tales and superstitions, but gets along well with logic and common sense. Her brother Bert is another matter - he never misses the opportunity to charm everyone around, accumulate debts and have an affair with a beauty. But one day, a brother and sister inherit from a relative they have never known a house on an island they have never heard of. And from that moment on, everything around them is turned upside down. Now they have to deal with the unusual traditions of the island of Saint Linsay and its eccentric inhabitants, find themselves in the center of a murder story and under the close attention of the local nobility. Is it possible to maintain sanity while unraveling a tight tangle of lies, hoaxes and intrigues? Editor's comment: A promising detective story about the dizzying twists and turns that an intricate plot, complex characters and picturesque locations give readers.