Witch's CanyonSupernatural Series
Witch's Canyon (Supernatural Series, 2)
Brothers Sam and Dean, taught by their father to fight against paranormal evil, take on a new case as they road trip to the Grand Canyon. In a nearby deserted ranchland, a murderous rampage occurs every forty years, coinciding with the arrival of a mega-mall. But the brothers soon realize they're not dealing with just human killers - animal spirits and ghosts have risen to terrorize the area, leading Sam and Dean on a dangerous quest to uncover the truth before they become the next victims in Witch's Canyon.