Led by RISEUP, a group that investigates paranormal incidents and places around New England. With 340 years of history soaked into its walls, Smith’s Castle is a prime location for a haunting or two. Visit smithscastle.org for more details and dates. Preregistration required Participants must be at least 16 years old; cost is $35 per person prepaid and non-refundable. Call for reservations. Limited to 12 people.