The author of Witches of Pennsylvania and "Pittsburgh's Historian of the Supernatural" takes on the region's folklore, ghost stories, and urban legends (Pittsburgh Downtown Partnership).   The ghostly woman of Summit Cut Bridge, a black hound that guards the Gates of Hell and the whispering dead entombed beneath the Black Cross--these are the spirits of southwestern Pennsylvania. Join local author Thomas White as he recounts such chilling stories as that of Revolutionary War witch Moll Derry and the phantom bride of White Rocks and the hair-raising tale of the angry specter of a steel millworker burned alive in a ladle of molten iron. Ascend the secret stairs of the Cathedral of Learning in Pittsburgh and wander the dim stretch of Shades of Death Road in Washington County to encounter the otherworldly denizens of the Keystone State.   Includes photos!