"The First Vestibule" is a fascinating historical novel written by the outstanding Ukrainian writer Oleksandr Kornienko. In this book, the reader will find a recreation of the era of the Cossack era, when our ancestors defended their free land from the onslaught of Sichvashchyna hordes. The main character is a brave and devoted Cossack who becomes the first chamberlain in Sich. The reader will submit to fascinating descriptions of battles, military strategies and spiritual quests of the characters, the atmosphere of the book will help to plunge into the unique world of past centuries. "The First Vestibule" is not only an exciting adventure, but also a deep reflection on the concept of patriotism and loyalty to one's ideals.