The U.S. grand prize winner of The 39 Clues online tournament has been announced; he’s a 12-year-old resident of Pinckney, Mich, named Christopher, and in winning top honors, he collected a $10,000 prize. Kids in the United States, Australia, Canada, New Zealand, United Kingdom, Ireland, Malaysia, Singapore, and India participated in a sweepstakes or online tournament testing their knowledge of The 39 Clues, the multimedia series that includes an online game in which readers become a part of the story and compete for prizes. To date, more than 1.4 million readers worldwide have registered at A grand prize was awarded to the contestant in each country who answered the most questions correctly in the least amount of time.

“Congratulations to all the grand prize winners, the most knowledgeable and skilled clue hunters!” said Ellie Berger, president of Scholastic Trade. “It’s exciting to see thousands of kids who are engaged in this multi-media reading experience, and it’s equally thrilling to hear from so many parents and educators who appreciate the subversively educational aspect of the series. We look forward to attracting even more readers worldwide with the launch of The 39 Clues: Cahills vs. Vespers this fall.”

Christopher said of his win: “The 39 Clues is an awesome book series. Following Amy and Dan around the globe in the hunt for clues was very exciting. The online clue hunt and missions and trading cards were fun, too. Me and my brother loved playing the card game. I am so excited about the new 39 Clues series that is coming out. I can't wait to find out who is a Vesper!”

There are more than nine million copies of the series book in print worldwide,. A 39 Clues movie is in development at DreamWorks Studios. with Steven Spielberg possibly directing; Deborah Forte of Scholastic Media is producing. The 39 Clues Madrigal Maze App has been ranked among the top “Paid Kids Games” in the App Store since release. For more information on the prizes, click here.