Shrews and Elephant Shrews

In a small town live Shrews and Elephant Shrews. These creatures are not so different from each other. However, shrews are considered upstanding citizens, while elephant shrews are shamed and despised. 
The esteemed shrew Aunt Rukhli follows all the rules and acts "as it should be." But a series of amazing events suddenly turns her life upside down. Or maybe the other way around? 
The book received a special prize at the awarding of the International Children's Literature Prize named after V. P. Krapivin.
More details: https://www.labirint.ru/books/684211/