First published 1961 by Arthur Barker Ltd.

First Pan Books edition published 1964.

This edition published 1984 by Pan Books Ltd,

Cavaye Place, London SW10 9PG

9 8 7 6 5 4 3 2

© Colin Wilson and Patricia Pitman 1961, 1984

ISBN 0 330 28300 6

Printed and bound in Great Britain by

Cox & Wyman Ltd, Reading

This book is sold subject to the condition that it shall not, by way of trade or otherwise, be lent, re-sold, hired out or otherwise circulated without the publisher's prior consent in any form of binding or cover other that that in which it is published and without a similar condition including this condition being imposed on the subsequent purchaser.