This is book 5 in 39 Clues-Cahills Vs. Vespers .

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

There are 4 pages in this book. This book was published 2016 by Scholastic US .

Linda Sue Park is the author of many books for young readers, including the Newbery Medal winner A Single Shard, and many other novels, poems and picture books. She lives in Rochester, New York, with her family, and gave a popular TED talk called Can A Children's Book Change the World?