Even in broad daylight with cars nearby, those look like photos of a nightmare. It's really too bad the Griggs House is gone. Some believe that whether or not a space was originally haunted, it can be "charged" with paranormal qualities through widespread fear and belief.
Scrawl the windows with Transitus Fluvii and Haxan may have brought the Witch - or something - to Patapsco Valley State Park! After all, if people believe something enough isn't it real?