Today, the celebration of Halloween conjures images of costumed trick-or-treaters, sweets, and jack-o'-lanterns; but there was a time when All Hallows' Eve focused more on the night's thinning boundary between this world and the world of the next. Tales of ghosts and haunted places naturally bubble to the surface this time of year, and with such rich history radiating from its halls, there is bound to be a ghost story or two floating around the Executive Mansion.