Sir Richard Francis Burton investigates a strange apparition called Spring Heeled Jack that has been assaulting young women around London.

"Sherlock Holmes has retired to the Sussex countryside . . . that is, until a most formidable puzzle is dropped upon his doorstep by a certain Colonel Pickering. One Miss Eliza Doolittle, once nothing more than a cockney guttersnipe, has been transformed into a proper lady of London--perhaps even a duchess?--as if overnight. When Col. Pickering recovered from a bout of malaria, he was astounded at the woman before him. Is it possible this transformation...