Club Purple is the place to be! The mysterious DJ Pardoman is so cool, with his ever-changing electronic mask.

So when a competition is announced to unmask the DJ, everyone wants to win and find out who he is.

When Dinah makes a shocking discovery she decides to investigate further, but has she fallen into a trap?

Little does Dinah realize that the Demon Headmaster is about to use her in his most threatening plan yet!Great fun and just a little bit frightening, Gillian Cross's Demon Headmaster books still hold readers under their hypnotic spell.

Fast-paced and full of adventure, they're impossible to resist!