Sir Arthur Conan Doyle's famous sleuth really doesn't need any introduction -- Sherlock Holmes, the famous detective who can uncover the deeper layers of seemingly simply crimes, and unravel the intricacies of impossible ones. "The Memoirs of Sherlock Holmes" is another round of exceptional mysteries, including the infamous one in which Holmes seemingly meets his death. Spoilers below. 
 When a famous horse in the Wessex Cup races vanishes, Holmes decides to go solve the case, along with Watson... and quickly discovers that it's not a simple case of theft. Then "The Case of the Yellow Face" comes up when a man asks Holmes to get to the bottom of his wife's weird behavior and strange yellow-faced visitor -- and even Holmes may not fully grasp what is going on. 
 Among the other cases: a client who suddenly commits suicide, an old man with a guilty secret, an ancient riddle that may have caused a servant's death, a sinister father-son team, a bizarre locked-room murder with the word "David," a man forced to interpret Greek for a sinister kidnapping gang, and a stolen naval treaty. 
 And in "The Final Problem," the evil Professor Moriarty tries to kill Holmes to keep the detective from bringing down his criminal network, with disastrous results. Don't worry, the shocking ending isn't quite as... well, shocking as it seems. 
 "The Memoirs of Sherlock Holmes" is a little more varied than Doyle's previous Sherlock Holmes collection, and it also has an ending that shocked his reading audiences. Namely: Holmes dies. Don't worry, readers nagged Doyle into bringing him back to life, but it's pretty startling since we're used to the good guy triumphing over all. 
 And as usual, Doyle crafts two kinds of crimes/mysteries -- the ones that are ultra-simple but turn out to have hidden kinks, and the ones that seem impossible to solve but are actually shockingly simple. And something rather startling happens in "The Adventure of the Yellow Face": Holmes screws up. You don't see that very often. The only problem is that the cases are rather less colorful and gripping than "The Adventures of Sherlock Holmes'." 
 Doyle also shows the perils of Holmes' job in this one -- he has kind of a nervous breakdown and gets sick from overwork, and needs a vacation that (of course) is interrupted by more cases. Additionally, we get some glimpses into both Holmes and Watson's back histories, such as Holmes' college days and Watson's time in the military. 
 "The Memoirs of Sherlock Holmes" is a suitably baffling string of mysteries, with plenty of weird twists and crimes -- including the ultimate one at the end.