About the book: 2023 / Going to her grandparents for the summer, Polinka had no idea what adventures awaited her... On the night of her twelfth birthday, she sees in the garden A mysterious door opens leading to the Magic Forest - a wonderful place where kind and cheerful creatures live. However, the forest keeps its secrets, just like the grandparents' house. Will Polinka solve the mystery of the seven paper cranes and help her new friends protect the forest??