In 1991, the first book in Mark’s Ghosts of Gettysburg series was released. In 1994, he was approached by a member of Gettysburg’s borough council about creating a “ghost” tour based on the stories in his books. Mark accepted the challenge and the result was the first ghost walk in Gettysburg, The Ghosts of Gettysburg Candlelight Walking Tours®. Armed with tales from his ghost books–and with a few that aren’t–guides dressed in period attire take visitors on evening tours through sections of town that were bloody battlefields; through night-darkened streets to houses and buildings where it’s not as quiet as it should be; to sites on the old Pennsylvania College campus where the slain once lay in rows, and the wounded suffered horribly, waiting to become corpses themselves; to cemeteries where the dead lie. . .sometimes not so peacefully.