The Demon Headmaster and the Prime Minister's Brain(2004)
(A book in the Demon Headmaster series)
An omnibus of novels by Gillian Cross
Octopus Dare is the new computer game at school - everyone's playing it. But only Dinah is any good at it. Soon all she can think about is Octopus Dare. She wins a place at the grand final, and she's over the moon. But there's something strange about it all that worries Dinah - so her friends come with her to the final. Before long they find themselves in trouble...facing their old enemy, the Demon Headmaster.
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August 2017 : UK Paperback
Title: The Demon Headmaster and the Prime Minister's Brain
Author(s): Gillian Cross
ISBN: 0-19-275997-3 / 978-0-19-275997-9 (UK edition)
Publisher: OUP Oxford
Availability: Amazon UK
June 2009 : UK Paperback
June 2004 : UK Paperback
August 2017 : Canada, UK Kindle edition
February 2012 : Canada, UK Kindle edition