If you ever loved Nancy Drew (the books, not the terrible CW TV version) or Scooby-Doo, you should check out The Agony House. Denise's folks, her mom and step-dad, have moved her back to New Orleans right before her senior year of high school. That's always painful. She had solid friends in Houston and was sure of a full scholarship to a university there.
Now she's in NOLA in a horribly run down Victorian which her parents are fixing up to turn it into a bed and breakfast. There is a lot of work to be done - it's been empty and neglected for some time and Hurricane Katrina didn't help it. It looked like the previous owner had started to fix it up and then left it abandoned.
Not everyone has what it takes to live in a haunted house. Everyone starts having accidents. Mike, the step-dad falls through the porch - stuff like that, scary and expensive both. Here's where I have to say growing up as a traditional Catholic gives me an edge on such matters. As soon as I realized it was haunted, I would have gone to the diocesan office to find out where the local exorcist was located and engage his services. (St. Pope John Paul II had asked all dioceses to have an exorcist. I know who the one for my diocese is.) But they're not Catholic so they don't go that route.
Denise and Terry, the neighborhood ghost enthusiast, try to figure out who is doing the haunting and why. They find in the attic an old comic, lovingly wrapped in plastic, which seems to provide some clues. After all, there is a sketch of Denise's house in it, a sketch of when the house was in its prime.
This is targeted at teens. As a much older reader, I quickly figured out what was going on with the haunting, but I sure enjoyed the trip Priest took us on getting there. This is a lot of fun and I highly recommend it for anyone who likes a good ghost story, mystery, or both.