About the book: 2018 / Eight-year-old twins Lenya and Lisa, who were threatened with deprivation of gifts for poor studies and unimportant behavior, decide to rob Santa Claus. The job is done, and the treasured bag is in their hands, but instead of gifts, there are only empty boxes in it! To understand what happened and correct what they have done, they will have to fly on Santa Claus's sleigh, drawn by reindeer, to the North Pole to Santa's warehouse. And there to solve a crime that almost ruined the Christmas holidays for all the children in the world.