Bram Stoker vs. Jack the Ripper? Unbelievable mistakes abound. For one thing, it was Richard Mansfield, not Henry Irving, who was playing in "Dr. Jekyll and Mr. Hyde" during the Ripper killings and was only briefly a suspect. For another, Doyle published "A Study in Scarlet" in "Beaton's Christmas Annual", not "Pearson's". If an author is going to drop names all over the place he should at least check his facts. There's also a line about James Barrie writing about fairies, but "Peter Pan" wasn't created until 1902 (the play came in 1904). All these errors came before page 80, I stopped counting after that!