source for the work of the code-breakers was Patrick Beesly’s
More of the background to the story, features, profiles and photographs, can be found on the website www.andrewwilliams.tv
Finally, I would like to thank my editor at John Murray, Kate Parkin, for helping me shape the story; Caroline Westmore for easing the book’s passage to publication in a tight time frame; Jane Birkett for copy-editing the manuscript; Lyndsey Ng for publicity; my agent, Julian Alexander; friends and family, in particular Kate, Lachlan and Finn for their enthusiasm and patience. I hope the reader finds enough of the spirit of the times in my story to forgive the liberties I have taken with the history.
Copyright
First published in Great Britain in 2012 by John Murray (Publishers)
An Hachette UK company
Copyright © Andrew Williams 2012
The right of Andrew Williams to be identified as the Author of the Work has been asserted in accordance with the Copyright, Designs and Patents Act 1988.
All rights reserved.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means without the prior written permission of the publisher.
All characters in this publication — other than the obvious historical figures — are fictitious and any resemblance to real persons, living or dead is purely coincidental.
A CIP catalogue record for this title is available from the British Library
ISBN 978-1-84854-583-0
John Murray (Publishers)
338 Euston Road
London NW1 3BH
