About the book: 2013 / Summer is around the corner! But Kisonka Kosinskaya has no time for rest - Matvey Sobolev, a rising star of show business, decided that only she deserves to be his girlfriend. The unfortunate singer arranges night concerts under the windows and watches over the poor thing near the school. Dad decided to help his daughter - to send Kisonka and Murka together with their friends to the sea, to Berdyansk. But there the girl faces a more complicated problem than an obsessive admirer: first a refrigerator falls on the boys, then they are chased by an unknown man in a swimming mask armed with an outlandish knife. And the detectives' instincts simply scream: a crime is being prepared somewhere nearby.…