By payment of the required fees, you have been granted the non-exclusive, non-transferable right to access and read the text of this e-book on-screen. No part of this text may be reproduced, transmitted, down-loaded, decompiled, reverse engineered, or stored in or introduced into any information storage and retrieval system, in any form or by any means, whether electronic or mechanical, now known or hereinafter invented, without the express written permission of HarperCollins e-books.Library of Congress Cataloging-in-Publication DataDavidson, Jenny. Invisible things / Jenny Davidson. — 1st ed. p. cm. Sequel to: The explosionist. Summary: In an alternate 1930s Europe, sixteen-year-old Sophie and Mikael, now more than a friend, investigate her parents’ death, setting off a chain of events that unravels everything she thought she knew about her family, and involving them in international intrigue and the development of the atomic bomb. ISBN 978-0-06-123978-6 [1.