The 39 Clues Book 11: Vespers Rising, Hardcover Book, By: Rick Riordan

The Cahills aren't the only family searching for the Clues. . . . The Cahills thought they were the most powerful family the world had ever known. They thought they were the only ones who knew about Gideon Cahill and his Clues. The Cahills were wrong. Powerful enemies-the Vespers-have been waiting in the shadows. Now it's their time to rise and the world will never be the same. In Vespers Rising, a brand-new 39 Clues novel, best-selling authors Rick Riordan, Peter Lerangis, Gordon Korman and Jude Watson take on the hidden history of the Cahills and the Vespers, and the last, terrible legacy Grace Cahill leaves for Amy and Dan. It was always leading to this. About the Author: Rick Riordan is the # 1 New York Times bestselling author of the Percy Jackson and the Olympians series for children and the Tress 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.