A fantastic adventure novel with elements of historical truth describes the events of Cossack times. An ordinary village teenager, Samiylo, embarks on a dangerous journey through the Tauri steppe to the Crimea, seeking to free his younger sister, enslaved by invaders. Cossack mythology is woven into the adventures. The reader will get to know Cossack Mamai, Gryphon, Pesygolovets, Bui-Tur, Didek.