This book is part of a book series called Lets-Read-And-Find-Out Science 2 .

This book has been graded for interest at 4-8 years.

There are 32 pages in this book. This book was published 2015 by Turtleback Books .

Arthur Dorros, author of many highly touted and best-selling picture books, has written his first novel. To research this book, he traveled extensively in the Balkans and lived briefly in "The Children's Village," which features prominently in the story. His previous books have been named ALA Notables, CBC-NCSS Notables, NYPL Best Books, and more. He lives in Seattle, Washington. Franklyn M. Branley was the originator of the Let's-Read-and-Find-Out Science series and the author of close to 150 popular books about scientific topics for young readers of all ages. He was Astronomer Emeritus and former Chairman of the American Museum of Natural History-Hayden Planetarium. Michael Rex learned to draw in Chatham, New Jersey, and studied at the School of Visual Arts in New York City. Who Digs? and Who Builds? are his first two books with HarperCollins. Mr. Rex lives in Brooklyn, New York.