It looked like an ordinary book. Old and boring. But when 11-year-old Nathan Cole picks it up off the attic floor strange things begin to happen-things he can't explain, or ignore. The book leads him through a complex set of clues left by Alastair Raven, a renowned New York City architect who vanished in the mid 1800s, never to be heard from again. Through every twist and turn, Nathan is convinced that Raven is reaching out to him, leading him to something. But what could a man who lived 150 years ago possibly want him to know? As Nathan works to answer that question, an even bigger mystery looms, one that dates back through his family for five generations. See what surprises await him in this action-packed novel that shows how one book can change the course of your life. Forever.