Twelve-year-old Nathan Nazberry doesn't want to relocate to Coves Point so soon after his mother's death. His father is insistent, however, and Nathan reluctantly heads for his new home-a run-down, old manor house on Dryden Lane. Despite his misgivings about Coves Point, Nathan quickly makes two new friends: Morgan Creswell and Dexter Mills. And to his surprise, he discovers his new home once belonged to his late grandfather. While exploring his new home, Nathan stumbles upon a series of complex riddles written by his grandfather many years ago. Together with his new friends and assisted by Alistair, an exceptionally smart raven, Nathan sets out to solve the riddles. What starts as a game quickly turns serious. Others have an interest in the riddles, and are willing to kill to possess what the meaning of the riddles ultimately uncover. Facing increasing danger with every turn, Nathan, Morgan, and Dexter must solve the more than thirty-year-old mystery-or risk becoming its latest victims.