Mallory Vayle and the curse of Maggoty skull

Mallory Vayle can see dead people and mostly tries to IGNORE them. But when her parents are ghost-napped, she is forced to team up with a talkative skull to get them back. Maggoty Skull promises to teach her the dark skills she needs, but only if she gets him a magnificent wig and promises to break the curse he has been placed under. Can the unlikely pair vanquish an evil spirit, free Mallory's parents and even become friends? Maybe, but only if Maggoty stops calling Mallory 'bumcrack'.