It is the end of summer 1876, and San Francisco has been struck by a heat wave and a smallpox epidemic. Jenny Bonnet, a frog-hunting woman dressed in men’s clothes, is riding her bicycle when she collides with Blanche Beunon, a burlesque dancer and prostitute. This is the start of an unexpected friendship that will end a month later when Jenny is shot dead in a saloon at San Miguel Station. Blanche is…