Murder at the Merton Library

Earl of Wrexford responds to a family friend's urgent plea and travels to Oxford, only to discover a librarian's murder and a stolen manuscript, with a troubling overheard argument linking the case to him. Meanwhile, Charlotte, working as A. J. Quill, investigates whether a laboratory fire was arson and how it relates to a groundbreaking naval invention race involving powerful interests and potential threats. As they uncover clues, they realize a sinister conspiracy is at play, threatening everything they value.