A futuristic fantasy by an award-winning author whose previous books include "Invitation to the Game". Ecological disaster has left the earth dry and barren, and when their parents die, Ian and Megan must leave the farm if they are to survive.

The Crystal Drop 2009, Simon & Schuster Children's Publishing, New York

ISBN-13: 9781442402225

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Crystal Drop 2005, HarperTrophy

ISBN-13: 9780006393634

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The Crystal Drop 1995, Heinemann, Harlow

ISBN-13: 9780435124267

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The Crystal Drop 1993, Simon & Schuster, New York, NY

ISBN-13: 9780671791957

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The Crystal Drop 1993, Mammoth, London

ISBN-13: 9780749710231

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The Crystal Drop 1992, Methuen young books, London

ISBN-13: 9780416188523

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