Sherlock Holmes is bored. But the the attractive Mary Mortan arrives at 221B Baker Street with a strange story to tell. Her father vanished ten years ago; four years later she received a beautiful pearl, and since then she has received a pearl every year. Now she has been invited to meet the sender of these pearls and asks Sherlock Holmes and Doctor Watson for their help. The case involves a mysterious map, hidden treasure and a wooden-legged man, enough to intrigue even Sherlock Holmes. But it’s more than just a mystery for loyal Doctor Watson: will he find love with the lovely Miss Morstan? * Wide range of activities pactising the four skills * FCE-style activities * Trinity-style activities (Grade 7) * Dossiers: The British in India and The Andaman Islands * Internet projects * Story recorded in full * Exit test with answer key