The Heir’s Hollow Alibi: an Ironclad Alibi. a Dead Heir. a Case of Shadows. in The

When Penny Harrington accepts an invitation to Thornwick Manor for a weekend celebrating newly discovered family documents, she expects scholarly discussion and country house hospitality. Instead, she finds herself investigating an impossible murder. James Cavendish, the manor’s heir, is discovered dead in his father’s locked study—a room secured from the inside with no other means of entry or exit. As Penny delves into the family’s hidden history and the manor’s mechanical secrets, she uncovers a web of academic fraud, forged documents, and deadly deceptions spanning decades. With her keen literary mind and eye for human nature, Penny must solve a locked-room mystery that challenges everything she thought she knew about truth, family loyalty, and the lengths people will go to protect their reputations.