Copyright © 2017 by Lauren Markham

All rights reserved.

Published in the United States by Crown, an imprint of the Crown Publishing Group, a division of Penguin Random House LLC, New York.

crownpublishing.com

CROWN and the Crown colophon are registered trademarks of Penguin Random House LLC.

Library of Congress Cataloging-in-Publication Data is available upon request.

ISBN 9781101906187

Ebook ISBN 9781101906194

Cover design by Michael Morris

Cover photography by Phil Schermeister/National Geographic/Getty Images

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