A richly atmospheric historical mystery by A. M. Stuart and the third novel in the Harriet Gordon Mystery series. Set in 1910 colonial Singapore, the novel combines a classic whodunit with vivid historical detail, memorable characters, and an engaging amateur sleuth.

Former suffragist Harriet Gordon is looking for a welcome change from her routine when she joins the Singapore Amateur Dramatic and Musical Society for a production of The Pirates of Penzance. Rehearsals introduce her to a lively cast filled with rivalries, romances, and hidden tensions. When the production's leading man is found brutally murdered, Harriet's theatrical adventure quickly turns into a murder investigation.

Working alongside Inspector Robert Curran, Harriet uncovers scandals, deception, and long-buried secrets among the theatre company. At the same time, Curran faces a deeply personal crisis when a mysterious stranger claims to know the truth about his past, threatening both his career and his future. As another member of the cast is killed, Harriet and Curran must identify the murderer before the killer strikes again.

With its immersive colonial-era setting, intricate mystery, and strong character relationships, Evil in Emerald delivers an intelligent blend of historical fiction and detective suspense.