Pippa Stanhope envisions a world teeming with her mechanical creations. So after a lifetime of hiding her love for inventing steam-powered gadgets, she's thrilled when her local university finally opens its doors to women. And the determined novice fearlessly sets out to pursue a higher education despite her family’s threat to disown her. Refusing to be intimidated by resentful male students and professors, she quickly befriends the three other ladies attending the school.

Lady Georgia Brunel, widowed a year, has been looking forward to her holiday in the Duchy of Venice with her companion, Millicent Brunel. The clockwork city’s annual art exhibition is in full swing, and old friends and new acquaintances make for an exciting social whirl.

Arwen Forester may be a socially awkward introvert, but she’s an expert tracker, archer, and forager who has a pickling recipe for every vegetable in the garden. Unfortunately, none of these skills earn her a lot of money. And when the taxes go up on her father’s farm, she’s not sure how to help him keep the property. Then someone offers her a lucrative new gig: Hunt down a haughty half-dragon criminal with the power to incinerate those who irritate him.

She's an unconventional lady who has traveled the world, practices the art of self-defense most excellently, and has an interesting tattoo in—ahem—a very unusual place. He's a former member of the Metropolitan Police, now a private investigator, who grew up on the poverty-ridden streets of Edinburgh and has worked the dangerous back alleys of London's notorious East End. A vicious murder brings them together in a race against time that takes them from the sordid back streets of London into the elite private clubs of the powerful and rich.

Hours later, the man’s cold body lies in the city mortuary, alongside the woman he couldn’t save. And his sister, unconventional nurse Gemma Tate, tracks down troubled police inspector Sebastian Bell to unravel the truth. Sebastian has enough pressure to solve the murder of an aristocratic heiress without Gemma meddling in his case. But the cryptic sentences she brings him from her brother’s notebook could be a crucial lead. If only they knew what “milky way” meant.