Victorian London is a place of fluid social roles, vibrant arts culture, fin-de-siècle wonders . . . and dangerous underground diabolic cults. Fencer Evadne Gray cares for none of the former and knows nothing of the latter when she’s sent to London to chaperone her younger sister, aspiring art critic Dorina. — At loose ends after Dorina becomes enamored with their uncle’s friend, Lady Henrietta “Henry” Wotton, a local aristocrat and aesthete, Evadne enrolls in a fencing school. There, she meets George Cantrell, an experienced fencing master like she’s always dreamed of studying under. But soon, George shows her something more than fancy footwork -- he reveals to Evadne a secret, hidden world of devilish demons and their obedient servants. George has dedicated himself to eradicating demons and diabolists alike, and now he needs Evadne’s help. But as she learns more, Evadne begins to believe that Lady Henry might actually be a diabolist . . . and even worse, she suspects Dorina might have become one too.
