Eliza receives a peculiar assignment from the sister of a woman who has gone missing. However, the police have already closed the case, creating tension between Eliza and the Duke.

An insurance company enlists Eliza's expertise to recover a priceless sketch crafted by renowned naturalist Charles Darwin. As she delves into the investigation, new revelations and unexpected developments emerge, entwining her and the Duke.

Eliza finds herself at the centre of suspicion as the prime suspect in a string of burglaries targeting city morgues. As the Duke embarks on a quest to identify alternative suspects, Eliza seeks assistance from her trusted allies, including Moses.

Entrusted with unravelling a blackmail scheme within the mysterious realm of Victorian medicine, Eliza encounters a formidable adversary in the form of Patrick Nash, proprietor of a prominent private detective agency.

A famous mystery writer is at the centre of Eliza's investigation when a series of murders copy scenes from his books; the Duke juggles problems at work.

Eliza and the Duke grapple with their relationship; when private investigator, Nash, falls victim to a gunshot, Eliza and Moses delve into the investigation surrounding the attempted assassination and uncover a startling revelation.