This Halloween, engage in a little historic mischief at The Chisholm's "Haunt the Hill." This free, family friendly, trick-or-treating event will include a child-friendly candlelit mansion walk-through at Horizon Hill, the former mansion of the third territorial governor, Abraham Jefferson Seay. Put Kingfisher on the list for some fun trick-or-treating activities for ghouls, ghosts, and costumed kids of all ages.