There are two kinds of Halloween people. There are the people who toss a plastic spider on the front desk on October 30 and call it festive. And then there are our people, the ones who start thinking about Halloween while everyone else is still complaining about humidity. The teachers planning their October outfits, the librarians preparing displays six weeks early, and the book lovers who firmly believe every season would be improved by adding ghosts, witches, and an unreaso