Finally, "Death Makes a Holiday" by David J. Skal, who has written several other books on spooky-type subjects. He starts out by debunking the Halloween-candy-poisoner urban legend, pointing out that the only proven time this happened it turned out to be a daddy in financial trouble trying to collect his children's life insurance. (Skal goes into a little true-crime detour on this story, ending with the father getting the death penalty in Illinois. Shows the difference between imagined or suggested horror and real-life horror).