Nocturne

In July 1966 at the almost empty, save for some schoolgirls, Museum of Natural History, Adrian Weiss, a specialist in heraldry and genealogy, is murdered. The similar murder of a 12-year-old girl at her boarding school leads Morse to delve into a 100-year-old murder mystery involving a wealthy family with connections to India and an inheritance. A masonic ring connected to the case goes missing.