Ghost hunting with one of America's foremost experts on paranormal activity, Professor Loyd Auerbach. For a guy who has never seen a ghost, Professor Loyd Auerbach sure knows a lot about them. He's authored several books on paranormal activity, one of which, Hauntings and Poltergeists, was called a "sacred text" on ghosts by Newsweek magazine. Professor Auerbach is also one of the go to guys when TV networks need expert consultation on shows having to do with the paranormal, having appeared on or consulted for programs on the Discovery Channel, the Travel Channel, The Learning Channel, A&E, the History Channel, the Sci Fi Channel and TechTV. He even gave Dave Letterman a tour of a haunted house on a 1993 episode of Late Night. And more seriously, he's taught courses on the paranormal at several colleges and universities. But to reiterate, despite a lifetime of hunting, Professor Auerbach has never seen a ghost. But all that is about to change when he and Martin Sargent go ghost hunting on this episode of Web Drifter…