The adventures of the Baker Street Irregulars continue in the second volume of the award-winning comics series based on Arthur Conan Doyle's Sherlock Holmes. Our young heroes journey from the elegant streets of uptown London to the sinister halls of Bedlam. Together, Billy, Charlie, and Tom-and Watson the cat-face new missions and new enemies, including the terrifying murderer Bloody Percy. And nothing can prepare them for the news from Reichenbach Falls: Sherlock Holmes, the renowned detective and mentor of the three friends, has perished. Struggling with shock and grief, the Baker Street Four embark on their darkest adventure yet!.