"The Black Circle - 39 Glues 05" is an exciting adventure book for teenagers, which tells the story of child heroes chasing the tracks of their male relatives. In this book, children go on a dangerous journey to Russia, where they will encounter mysterious riddles, danger and intrigue. They search for answers to confusing questions about family history and try to unravel the sinister Circle of the Black. The author of this book successfully combined modern technologies, historical and cultural information, which makes reading even more interesting and informative. Each page is filled with tension, mysteries and incredible events that keep the reader in suspense until the last page. "The Black Circle - 39 Glues 05" is a book about friendship, loyalty, self-belief and family values. It will teach readers the importance of cooperation, resourcefulness and courage in the face of difficult challenges. This book will capture the imagination of any reader, inspiring adventure and development."