This book is part of a book series called 39 Clues .

This book was published 2015 by Scholastic on Brilliance Audio .

Jude Watson is the author of two 39 Clues books, BEYOND THE GRAVE and IN TOO DEEP, and the bestselling Star Wars: Last of the Jedi and Jedi Quest series. As Judy Blundell, she wrote WHAT I SAW AND HOW I LIED, the 2008 winner of The National Book Award for Young People's Literature. She lives in Katonah, New York with her husband and daughter. Patrick Carman's previous books in the Land of Elyon series (The Dark Hills Divide, Beyond the Valley of Thorns, and The Tenth City) have all been New York Times bestsellers Peter Lerangis is the author of many books for young readers, including wtf , Smiler's Bones , the Watchers series, The Sword Thief , and the New York Times bestselling 39 Clues series. Peter lives with his wife and two sons in New York City. Visit him at PeterLerangis. com. Rick Riordan is the author of the hugely popular Percy Jackson series. 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? Gordon Korman published his first book at age fourteen and since then has written more than ninety middle grade and teen novels. Favorites include the New York Times bestselling Ungifted, Supergifted, The Unteachables, Pop, Schooled, and the Masterminds series. Gordon lives with his family on Long Island, New York. You can visit him online at www. gordonkorman. com.