In the gleaming heights of Victorian London, a world of deception awaits an unconventional Society lady whose taste for adventure makes her a most formidable adversary . . .

Though Society demands that I make a good marriage, I, Cherry St. Croix, have neither the time nor the interest. I am on the trail of a murder with no victim, a mystery with no motive, and the key to an alchemical formula that could be my family's legacy.

Yet the world is not so kind as to let me pursue simple murder and uncomplicated bounties. Above the foggy drift, an earl insists on my attention, while my friends watch my increasingly desperate attempts to remain my own woman. From the silken demands of the Midnight Menagerie—to whose dangerously seductive ringmaster I owe a debt—to the rigorous pressures of the peerage, all are conspiring to place before me a choice that will forever change my life.