The first novel in the Westerman and Crowther historical crime series that The New York Times Book Review called "CSI: Georgian England" and Tess Gerritsen called "chillingly memorable."

Debut novelist Imogen Robertson won the London Telegraph's First Thousand Words of a Novel competition in 2007 with the opening of Instruments of Darkness. The finished work is a fast-paced historical mystery starring a pair of amateur eighteenth-century sleuths with razor-sharp minds.

When Harriet Westerman, the unconventional mistress of a Sussex manor, finds a dead man on her grounds, she enlists reclusive anatomist Gabriel Crowther to help her find the murderer. Moving from drawing room to dissecting room, from dark London streets to the gentrified countryside, Instruments of Darkness is a gripping tale of the forbidding Thornleigh Hall and an unlikely forensic duo determined to uncover its deadly secrets.