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 ...

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