I LOVED LOVED LOVED this book, it alternates between the World's Fair and the exploits of serial killer, Dr. H.H. Holmes and the author tells the story in an entertaining way and packs it with interesting bits of information about the Fair's creation and also the effect it had on society at the time, add in chilling details about America's first serial killer and you have cracking good read!! The combining of the two is an ingenious idea that works amazingly well...hats off to the author!!