Dear god, this book dragged on. Very well-written, well-researched...just overkill on all the machinations of the 1893 Chicago World Fair. I was expecting more about the serial killer than the Fair, and it was opposite. Through the first 3 parts the chapters (for the most part alternating between the Fair and the nefarious doings of Holmes) on the Fair were much longer than the others. Very informative (I had no idea of the beginnings of Farris wheels or Juicy Fruit), but if you're expecting true crime, this isn't quite it.