Since we don't have the full details of the Seth Kendall ghost story, key elements could potentially include the location. If Seth Kendall was from a particular place, like an old cemetery or an abandoned building in the area might be part of the story. Also, the time period could be important. Was it a long - ago event that led to the ghostly happenings? And of course, the actions of the ghost and any witnesses would be key elements.
As I don't know the story, it's hard to say. But generally in a ghost story, key elements could be the ghost itself, like its appearance or the way it haunts. So in the Seth Kendall ghost story, it might be how Seth Kendall is related to the ghost. Maybe he wronged someone in the past and that person's spirit is now haunting him or his family.
Not knowing the specific Seth Kendall ghost story, common key elements in a ghost story might apply. There could be a trigger for the hauntings. For example, in the Seth Kendall story, perhaps it was a certain object that belonged to Seth Kendall that set off the ghostly activities. Then there would be the reactions of the people involved. Are they scared? Do they try to communicate with the ghost? And the overall atmosphere of the story, whether it's a spooky old mansion or a fog - covered forest setting.