The police apprehend a gang of opium smugglers on the banks of the Thames.

Marlott and Nightingale pursue clues among London's body snatchers and become embroiled in the raging political debate between science and religion.

Making the acquaintance of writer Mary Shelley, Marlott looks into the possibility that the killer he seeks was inspired by her novel "Frankenstein."

Marlott learns more about galvanism and -- against the wishes of smitten Nightingale -- uses Flora as bait in an operation to nab a gang of killers.

Boz publishes his newspaper story about the "Frankenstein Murders," angering Peel and sparking public outrage on the eve of the Anatomy Act's passage.

As clues lead Marlott toward his prime suspect, he urges Mary Shelley to go public with what she knows, but she refuses and leaves the country.