This book has been graded for interest at 9-12 years.

There are 416 pages in this book. This book was published 2015 by Little, Brown Books for Young Readers .

Henry Clark is the author of What We Found in the Sofa and How It Saved the World. He has contributed articles to MAD magazine and published fiction in Isaac Asimov's Science Fiction Magazine, in addition to acting as the head phrenologist at Old Bethpage Village Restoration, a living-history museum in New York. He lives on Long Island.