Adapted by Gina D. B. ClemenMystery & horrorA mysterious lodger has just rented rooms at Mrs Warren’s lodging house. She is frightened by this strange individual, so she asks Sherlock Holmes to help. He and Dr Watson discover cryptic messages, a sinister secret society with international roots and a terrible murder…Dossiers: An introduction to Sherlock Holmes and Dr Watson, Victorian Writers, Police and Detectives of the 19th CenturyLevel: Step 1 Exam: KET TRINITY