Identification points are listed only where two independent sources agree. Last reviewed 11 Nov 2026.
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In Britain the novel was issued by Macmillan Children's Books, an imprint of Pan Macmillan, in London in 2011 as a paperback, ISBN 978-0-330-45385-1, 296 pages. The British Library also holds a 2011 ebook (ISBN 978-1-4472-0848-8). We found no British hardback. The hardback usually sold as the first edition is the American Point (Scholastic) issue of May 2011, ISBN 978-0-545-28410-3, which is not the British first. Open Library records a second Macmillan paperback ISBN, 978-0-330-45386-8, so check the ISBN on the back cover and imprint page. Retail records disagree on the British month of publication (May or September 2011).
Macmillan has long marked its later printings: a reprint or new edition carries a note of its printing history on the back of the title page, so a copy with no such note is the place to start.
On modern books, look for a number line on the copyright page. If the 1 is present, in any order, the copy is usually a first printing; a line such as 3 5 7 9 8 6 4 shows a later one.
Read the full guide to Macmillan Children's Books first editions, decade by decade, and check your copy's copyright page against it. Our number line decoder reads the printing from the row of numbers.
We have not yet confirmed the issue points that tell this first impression from later ones. Until we do, compare your copy's title page and copyright page with the publisher, place and year above: any later printing or edition statement means it is not this one.
Know the points? Tell us. We publish them, with credit, once a second source agrees.
Macmillan Children's Books, London, in 2011, in paperback.
Points of issue are listed only where at least two independent sources agree. Last reviewed 11 November 2026. Reviewed by Harriet Ellis; read how we check facts.
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