Join us for an in-depth investigation of the Keith House at Graeme Park. Long rumored to be Horsham's most haunted mansion, paranormal happenings have been reported here since the early 19th century when Elizabeth Graeme passed away. Small groups will be paired with an investigator who will lead you through the use of various equipment and detection methods. Groups will move around the house so you'll have the opportunity to explore all three floors. You may bring your own equipment if you…