First published 2015 by Penguin Books US,
an imprint of Penguin Random House LLC
First published in the UK 2015 by Mantle
This electronic edition published 2017 by Picador
an imprint of Pan Macmillan
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ISBN 978-1-4472-6467-5
Copyright © Sellerio Editore 2012
Translation copyright © Stephen Sartarelli 2015
Cover illustration by Tom Clohosy Cole
Originally published in Italian 2012 as Una lama di luce by Sellerio Editore, Palermo.
The right of Andrea Camilleri to be identified as the author of this work has been asserted by him in accordance with the Copyright, Designs and Patents Act 1988.
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A CIP catalogue record for this book is available from the British Library.
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