The New York Times bestselling author of the Peter and the Starcatchers and Kingdom Keepers series, Ridley Pearson, brings us the riveting first tale of the Lock and Key trilogy about the origins of the rivalry between literature’s most famous enemies—Sherlock Holmes and James Moriarty, told from the perspective of James’s observant little sister, Moria. Before James grew up to be a ruthless, remorseless villain, he was a curious boy...

When an Englishwoman receives mysterious gifts of pearls and a letter promising to right wrongs done to her, she calls upon Sherlock Holmes and Dr. Watson to investigate.

For many years it has been widely accepted that the complete canon of Sherlock Holmes's adventures by Sir Arthur Conan Doyle consisted of fifty-six stories and four novels. But there have also been persistent rumors of a number of other items that Conan Doyle wrote about his world-famous detective and which, for one reason or another, have never been included in the collected works. Now these missing items, including stories, plays and poems, have...