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Follows a fourteen-year-old American girl whose life unexpectedly transforms when she moves to London in 1952 and gets swept up in a race to save the world from nuclear war.
- ISBN: 9780399256271
- Author: Meloy, Maile
- Published: 2011 , Penguin Group USA
- Themes: Adventure, Alchemy, cold war, London, nuclear disaster
- Descriptors: England (UK), Historical Fiction, Intermediate (ages 9-14), Young Adult (ages 14-18)
- No. of pages: 368