Well, without having read it specifically, I assume it revolves around Alma Fielding's supposed encounters with the supernatural. It might describe the spooky incidents, any unexplained phenomena she faced, and how those experiences made it into a 'true ghost story'. For example, it could talk about strange noises, apparitions, or otherworldly feelings she had in a particular place. This kind of story often tries to convince the readers that there was indeed something paranormal going on in Alma Fielding's life.
Sure. The Amityville Horror is another one. Supposedly, a family moved into a house where a mass murder had occurred. They experienced all kinds of terrifying things like cold spots, strange apparitions, and doors slamming on their own. Whether it's completely true or not is debated, but it's a very famous true - ish ghost story.
Well, the Alma ghost story might vary. In some versions, it could be centered around a tragic event that occurred in Alma long ago. For instance, a young woman might have died unjustly in Alma, and her spirit is said to roam the area. People might report hearing her sobs or seeing her figure in a white dress on moonlit nights near certain locations in Alma.
The sudden apparitions are probably the scariest part. Just imagine walking in Alma and suddenly seeing a figure out of the corner of your eye that vanishes when you turn to look directly at it.
Most likely not. Usually, if it were based on a true story, there would be some indication or background information given. But for Alma Filcott, I haven't come across anything suggesting it's true.