Calling Jodie Simon

"Hi Jodie, it's Mum. I just called to let you know I'm coming to see you. Missing you heaps. Can't wait to be together again." The simple phone message has Jodie spooked. She'd give anything to see her mother again but that's impossible. Dead people only return for visits from beyond the grave in books and movies. They can't pick up a phone and call the living to have a chat. Someone must be playing a sick joke. But when the phone calls stop, the other weird communications start and Jodie has to find out the truth. Are the messages from her mum? Should she expect a ghostly visitor?