Vespers Rising (the 39 Clues, Book 11) Hardcover - 2011

Rick Riordan is the #1 New York Times bestselling author of the Percy Jackson and the Olympians series for children and the Tres Navarre series for adults. His books have won many accolades including a mention on the 2005 New York Times Notable list for The Lightning Thief. Rick lives with his family in San Antonio, Texas.
Gordon Korman is the beloved author of over one hundred novels for young readers, including hilarious middle-grade classics such as the Macdonald Hall series, I Want to Go Home and Slacker. Born in Montreal, Quebec, Gordon grew up in Thornhill, Ontario, and now lives in New York with his family. Visit him online at www.gordonkorman.com.
Jude Watson is the author of six 39 Clues books, Beyond the Grave, In Too Deep, Vespers Rising, A King's Ransom, Nowhere to Run, and Mission Titanic, along with 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 Long Island, New York, with her husband and daughter.
Peter Lerangis is the author of The Sword Thief and The Viper's Nest, Books 3 and 7 in the bestselling multi-media adventure series The 39 Clues. He has written more than 150 books for young readers in many different genres. He's also a Broadway musical theater actor/singer, a marathon runner, and a father of two sons. He currently lives in New York City.