"Light of the Jedi" is a novel set in the Star Wars universe, specifically during the High Republic era, which takes place centuries before the events of the original films. The story follows the Jedi as they face a new threat known as the Great Disaster, which causes chaos across the galaxy. The book introduces various characters, including Jedi like Avar Kriss and Elzar Mann, who work together to protect the galaxy and maintain peace. It explores themes of heroism, unity, and the challenges faced by the Jedi as they confront emerging dangers in a time of relative peace.