Set in Elizabethan England, the novel weaves a tale of intrigue, love, and betrayal centered around the Earl of Leicester, who keeps his marriage to the beautiful Amy Robsart a secret to preserve his favor with Queen Elizabeth I. Ambition and political machinations lead to tragedy as the Earl's concealment of his marriage and his attempts to navigate the treacherous waters of the court ultimately result in heartbreak and disaster. The novel portrays the splendor and tumult of the Elizabethan era, culminating in the grandeur of the Earl's entertainment of the Queen at his castle of Kenilworth, where the hidden truths and dark consequences of his actions come to a head.