I didn't see a ghost until I was over 30, though I had always wanted to. 

Here's the story: I saw a ghost once (I think, unless I was mistaken); it wasn't scary at all. I didn't even know I had seen a ghost until it was gone. My wife and I were visiting a castle in England when we were walking up an old stone staircase. At the top of the stairs I saw a woman in a blue dress. When we got to the second floor, the woman was gone--and there was no other way down from the floor. I decided that she must have been a ghost (otherwise, how could she disappear?), though I can't prove it. Of course, she also could have been a figment of my imagination (a blur as I turned my head). Whatever I saw (or didn't see), it wasn't a terrifying experience; it simply happened.

I have written a number of books about ghosts, including most recently, the novel The Very Real Ghost Book of Christina Rose. Earlier in my publishing career, I wrote How to Find a Ghost. It was filled with stories and advice for budding young ghosthunters. A few years after that, I wrote Ghosthunters which was a collection of ghost stories. 

Here are some of the ghost stories that I've written:

 

Ghost Story 1: The Ghost of Serena, a ghost story about a family that didn't know how to investigate ghosts.

Ghost Story 2: The Ghost Detective, a ghost story about a real ghost detective from the late 1800s.

Ghost Story 3: The Ghosts of the Trianon, a ghost (and time travel) story about two women who visit the Trianon at Versailles and have an unusually haunting experience.