CLARA VAUGHAN, the young heroine, narrator, and namesake for R. D. Blackmore’s early detective novel, is determined to solve the mystery of her father’s murder—a crime that occurred when she was only 10 years of age. The third volume of the trilogy concludes the account of Clara’s adventures, romances, and encounters with many eccentric characters while she finally unravels the mystery. As Clara explains to the reader in an early chapter: “How that deed was done, I learned at once, and will tell. By whom and why it was done, I have given my life to learn.” R. D. Blackmore, undoubtedly better known for his later novel Lorna Doone, published this book anonymously in 1864.