This book is part of a book series called 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 .

Roland Smith is the best-selling author of Peak, The Edge, and other critically acclaimed adventure novels for young readers. When he isn't writing, he's traveling the country, speaking at schools and events. He lives in Portland, Oregon. www. rolandsmith. com Penny Arlon writes children's nonfiction, taking inspiration from her own children. Her books range from preschool titles to family reference books, and include the Art Attack books, based on the award-winning CITV (UK) children's television program, and all 14 titles in Dorling Kindersley's Eye Know series. She is the author of almost all the books in the Scholastic Discover More emergent and confident reader strands, which have won numerous accolades and prizes.