A compulsive YA murder mystery full of intrigue and queer romance, in a historical Regency setting. In Regency England, Cascabel Gray disguises herself as a man to attend Oxford University to study medicine. Her plans are upended, however, when she receives a letter from Charles Lafleur, a member of the secret society the Rogues Club, blackmailing her to keep her deception secret. But when Lafleur is found dead, the plot thickens and Cascabel becomes a prime murder suspect. Cascabel joins the Rogues Club to conduct an investigation of her own, and is quickly swept into a life of gambling and vandalism. To survive in Oxford's high society, she must switch between her male and female personas, attracting the attentions of fellow student William Grenville and a chambermaid known as Mouse even attending a ball with an Austrian prince. Can she find a way to balance her double life and clear her name, before she loses everything?