"The Oath of Nerulla" is an exciting fantasy book that tells the story of the eternal struggle between light and darkness. In the center of events is a hero named Elias, who decides to put an end to the evil represented by the cult of the night lord Nerulla. His way to achieve this goal is full of danger, losses and trials. But Elias's faith, love of freedom and strength of spirit help him overcome all obstacles on the way to victory over darkness. "The Oath of Nerulla" is an exciting adventure that will leave its readers with many unforgettable impressions and moral conclusions.