Okay.Explanation: The novella is very part for the course for it kind. It only has some twists there and there: the ghost could kill someone, the main character best friend was a ghost all along, the main character is a vampire, the main character is really a ghostbuster in training. ( I decided to make a darker turn to the twists, and see what happens)
(Also and this is just head canon, this connects the Fear Street stories in one universe- Hide and Shriek and Who d been sleeping in my grave?- and with the Goosebumps universe- Piano lessons can be murder and Stay away from the tree house-.
For this What if I take the fact that the main character is a vampire as certain and I eliminate the best friend being a ghost and the part were the ghosts would have kill him.