Well - developed characters are crucial. A haunted protagonist who has a complex backstory and is dealing with inner demons as well as outer ghosts can make the story really engaging. And of course, the ghosts themselves should be interesting. Maybe they have a tragic past or a malevolent intent that drives the plot. The plot also needs to be full of suspense. Keeping the reader on the edge of their seat, not knowing when the ghost will appear next or what it will do is a key factor in making a ghost story epic.
A great setting makes an epic ghost story. For example, a creepy old mansion or an isolated cemetery. These places add to the overall atmosphere of fear.
The use of vivid descriptions also plays a big role. When the author can describe the ghost in a way that makes it seem real and terrifying in the reader's mind, it adds to the epicness. For instance, describing how a ghostly figure moves silently through the halls, its pale face glowing in the dark, or the cold chill it brings with it. Also, a good ghost story often has a deeper meaning or message hidden within, like a warning about the consequences of certain actions or a commentary on human nature.