Everyone knows if you’re looking for an evening of frights and fun, especially around the spooky season, your best bet is to book a historical tour that will take you on an after-hours ghost hunt through some of the eeriest estates in old upper-midtown. And this year, for the first time ever, the Chivers House, notoriously rumored to be the most haunted of all the old estates, will be opening its doors to members of the public after dark...