ISBN 0192778064 books & textbook
Demon Headmaster Series 8 Books Collection Set by Gillian Cross (Prime Minister's Brain, Revenge, Strikes Again, Takes Over, Facing, Demon Headmaster, Total Control & Mortal Danger)
OUP Oxford /2020-01-01 Paperback
isbn-10: 0192778064 / isbn-13: 9780192778062