Dinah, Lloyd and Harvey thought the Demon Headmaster was gone for good, so when they move back to their old house everything seems safe at first. Then strange things start to happen. Libraries are closing down, the internet keeps crashing, and telephones refuse to work. Dinah and the boys realize they must find out what’s going on. Could the demon headmaster be back? Surely not?
When people start to wear matching badges with a grabbing green hand, and begin speaking robotically, Dinah and the boys know they need to find out what's going on. Their search leads them to the Hyperbrain, a fantastic new computer invention that accesses the human brain to compile its data. But why has its inventor started to act so strangely, and who is the mysterious controller at the Artificial Intelligence Unit? It sounds like it could be the Demon Headmaster. But surely that's impossible ...isn't it?
Gillian Cross has won numerous literary prizes, including the Carnegie Medal, the Whitbread Children’s Novel Award (now the Costa), and the Smarties Prize.
Gillian Cross has been writing children’s books for over thirty years. Before that, she took English degrees at Oxford and Sussex Universities, and had various jobs including working in a village bakery and being an assistant to a Member of Parliament. She won the Carnegie Medal for Wolf, the Smarties Prize and the Whitbread Children’s Novel Award for The Great Elephant Chase; and the Little Rebels Award for After Tomorrow.
