“Princess of the Underwater Kingdom” is an amazing book for children about the fantastic adventures of second-grader Arina and her friends. Its fascinating adventure plot will not leave any little reader indifferent. This book is not only exciting, but also educational, because it contains interesting information for the general development of a child: about insects, about precious stones and their properties, about the history of costumes of various peoples, etc. Irina Zhdanko’s book is bright and kind, full of adventures , in it reality is intertwined in an extraordinary way with magic and fantasy, captivates and makes you really believe that the power of friendship works wonders, and dreams will certainly come true. The book is intended for children 5-12 years old.