Strollin Onto My Doorstep

Your friends are really weird, they like to do extraordinary (and sometimes really stupid) things. One day, they told you about a haunted house with a mystery that still hasn't been solved. You run up to the porch and open the door. It's creepy. Mold on the ceiling, vines growing on the walls. Blood stains on the stairs, and holes in the what used to be polished floor. Your friends told you that a person like you was there, and wrote a book about it. This person never found out what the mystery was. So, you went looking for the book. You checked the library of the house, the study, the upper floor, and the basement. But there was still one place... the attic. You head up, and to your surprise, there was a book. Right there, smack down on a chest. You push the book off and open it. There are things in there. A wooden stake, a silver knife and sword,a spell book, and even a picture of the man who had came here before you. You pick up the book, it was called 'Strollin Onto My Doorstep: How To Stop The Evils In This House.' What was this guy talking about? Evils in a house? You flip to the first page, the author (and supposed person who came here before you) was named Aaron Daniels, a paranormal detective. The first page talks about how there is monsters, vampires, zombies, witches and warlocks, and even werewolves!
'This guy musta been crazy!' You thought. Everyone knows that ghosts and monsters aren't real... Right? This is the book he wrote.