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Joey Harker gets lost in another dimension. This walk between worlds makes him prey to armies of magic and science, both determined to harness Joey's power to travel between dimensions. There is an army of Joeys, from different dimensions and determined to save the worlds. Joey must make a choice: return to the life he knows or join the battle to the end.

Interworld 2013, Harper Teen, New York

ISBN-13: 9780062125309

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Interworld 2013, HarperCollins Children's Books, London

ISBN-13: 9780007523429

Mass-market paperback

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InterWorld 2012, Roca Editorial

ISBN-13: 9788499184364

Spanish

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Interworld 2008, Eos, New York, NY

ISBN-13: 9780061238987

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Interworld 2008, Subterranean Press

ISBN-13: 9781596061736

Hardcover

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Interworld 2008, Harperchildren's Audio

ISBN-13: 9781605149738

Unknown binding

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Interworld 2007, Eos, New York, NY

ISBN-13: 9780061238963

Hardcover

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Interworld 2007, HarperCollins Publishers, New York, NY

ISBN-13: 9780061254604

Audiobook CD

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Interworld 2007, Eos, New York, NY

ISBN-13: 9780061238970

Hardcover

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