Ever since he made his first appearance in A Study In Scarlet, Sherlock Holmes has enthralled and delighted millions of fans throughout the world. Now Arthur Conan Doyle's complete works – four novels and five collections of short stories – has been brought to life by Stephen Fry, a lifelong fan of Doyle's detective fiction, in this The Definitive Collection. In addition, Stephen has written and narrated nine insightful, intimate and deeply personal introductions to each title. Part 7: The Valley of Fear In this tale drawn from the note books of Dr Watson, the deadly hand of Professor Moriarty once more reaches out to commit a vile and ingenious crime. However, a mole in Moriarty's frightening criminal organisation alerts Sherlock Holmes of the evil deed by means of a cipher.