<li>Back by popular demand <li>A supernatural detective story <li>Winner of the 1977 National Writers Club Award for Nonfiction <p>Now in paperback, this true story recounts a Philadelphia family's encounter with a supernatural presence in their eighteenth-century mansion. After experiencing footsteps at night, opening doors, strange sounds and activity that centered around the library, they investigate, unearthing the mansion's tragic past and changing their beliefs about the supernatural world.