There are many villains who would prey on wayward, penniless boys. Bianca suspects the killings are not brutal acts of impulse, but something far more calculated. In her room of Medicinals and Physickes, she examines the sole piece of evidence: a sweet-smelling cloth. If Bianca can unravel its secret, reputations and lives will be saved. The expected hour of the next murder is approaching, and a single misstep may mean another boy is lost forever...