'I hope you are not going to be a person who won't co-operate with me.' Suddenly, asking questions is dangerous and finding out answers seems impossible. What's going on? Dinah and SPLAT investigate, and their search leads them to the Hyperbrain - a computer with more-than-human intelligence. Its mysterious Controller sounds horribly like the Demon Headmaster, but the Headmaster has vanished for ever ... or has he?
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The Demon Headmaster Takes Over
'I hope you are not going to be a person who won't co-operate with me.' Suddenly, asking questions is dangerous and finding out answers seems impossible. What's going on? Dinah and SPLAT investigate, and their search leads them to the Hyperbrain - a computer with more-than-human intelligence. Its mysterious Controller sounds horribly like the Demon Headmaster, but the Headmaster has vanished for ever ... or has he?
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