Demons are a Ghoul's Best Friend by Victoria Laurie.

Demons are a Ghoul's Best Friend by Victoria Laurie. Mystery. Pages 292. M.J. is out hunting ghosts again. This time for her best friend. It takes her to a boarding school and luckily money talks. Her friend gets in and buys their way onto the grounds. Chasing hatchet jack is going to be tricky though and might just be deadly.