"The D'Arblay Mystery" by R. Austin Freeman follows Dr. Thorndyke as he investigates the disappearance of Philip D'Arblay, father of Marjorie, to whom Robert Calder is engaged. Mysterious events unfold—including sightings of strange lights and the discovery of a corpse in a cinder heap—drawing suspicion toward Marjorie and her fiancé. Using his scientific methods, Thorndyke unravels the truth, revealing thallium poisoning and an elaborate scheme of deception. The novel showcases Freeman's signature forensic detective techniques, blending romance, suspense, and meticulous investigation as the lovers' fate hangs upon the brilliant sleuth's ability to expose a cunning criminal plot.
