It begins with a book, the most boring book in the world, a book so boring no one could ever read it--the perfect place to hide a dangerous secret.

When best friends Luke and Tommy volunteer to help move books from their library's basement to higher ground during a quick rising flood, they discover the only surviving copy of the most boring book in the world: Leonardo's River, lost for over 100 years. The book is connected to Leonardo da Vinci and is worth millions, so they return that night to steal it. Unfortunately, they're not the only ones with that plan. . . .

Brian Falkner, author of Brain Jack and The Tomorrow Code, delivers another page-turning thriller with heart-pounding action--this time, with a secret from Leonardo da Vinci that could determine the fate of history.

Genre: Young Adult Fantasy