In 1891, the great detective, Sherlock Holmes, disappeared in Switzerland while working on a dangerous case. Everyone thought that he was dead. But three years later, he returned to England. Holmes and his friend, Dr Watson, had many more adventures together. Three of his most interesting cases are in this book.

Penguin Readers are simplified texts designed in association with Longman, the world famous educational publisher, to provide a step-by-step approach to the joys of reading for pleasure. Each book has an introduction and extensive activity material. They are published at seven levels from Easystarts (200 words) to Advanced (3000 words).