The book ‘A Knight of the Seven Kingdoms’ is written by George R. R. Martin. ‘A Knight of the Seven Kingdoms’ is a collection of the 1st three official prequel novellas. It takes place nearly a century before the events of ‘A Game of Thrones’. The book recounts an age when the Targaryen line still holds the Iron Throne. In the story, the character’s, are Ser Duncan the Tall, a courageous hedge knight, and his squire, Egg.