"Leon" is a book for teenagers and for very adult, sophisticated people. This is a paradoxical family story, a strange love story, a fairy tale of growing up, giving hope.Dyachenko's spouses were born in Kiev, co-authors, screenwriters, laureates of more than a hundred literary awards.For the last ten years they have lived in the USA, writing in Russian in the genres of modern science fiction, fantasy and fairy tales. Their books have been translated and published in America, Great Britain, Germany, France, Italy, Spain, Brazil, China and other countries.After the death in 2022 of Sergei Dyachenko, her husband, friend and co-author, Marina continues their common cause, as promised to Sergei.