The Demon Headmaster Takes Over

Dinah and her brothers are pretty sure they’re rid of the Demon Headmasteronce and for all. When people start dismantling the research centre Dinahcontacts Professor Claudia Rowe, who’s an expert on artificial intelligence.With Dinah’s help she saves some of the precious materials and they becomefriends. Then weird things start to happen. Libraries start closing and theirbooks are taken away. Telephones stop working, and there is no internet access.People start talking like robots-even Claudia Rowe-and more and more of themseem to be wearing strange badges. It all adds up to one thing: the DemonHeadmaster must be back. Dinah’s search leads her to the university where shefinds him developing a Hyperbrain-a computer with superhuman intelligence anddeadly potential. Suddenly she’s trapped. Is there any way to foil his plan?Gillian Cross has won the Carnegie Medal, the Whitbread Children’s Novel Award,and the Smarties Prize, and is a highly-acclaimed author. Sales of Gillian’sbooks exceed one million copies.