"Unknown daughter is thin and psychologically adjusted prose, novel simultaneously gloomy and inspiring. For a main heroine, professor of the Italian university, all is not bad outwardly - adult daughters live separately, but regularly ring to her, a former husband is adequate, she has a rest in a pleasant township at a sea. But is all safe in her past? That compels this beautiful quadragenarian woman to interfere (thus with a danger for itself) in life quite as though of stranger neighbour on a beach? An author of book, Элена Ферранте, is personality enigmatic, preferring to be in the shadow of the books. It unknown even, whether she uses by a pseudonym or writes under the proper name. Her novels are translated into 40 languages, and in 2016 she entered a list 100 most influential people of the world on the version of weekly Time.