The adventure of 12-year-old William Jones' lifetime begins when he hears his father's footsteps, pacing back and forth late at night across the floor of the bedroom beneath his own-even though his father is dead. To stop the restless pacing of his father's ghost, William goes to London to find John Diamond, the son of the man his father cheated two decades earlier. In a strange, shadowy world of thieves, swindlers, and cutthroats, William tries to make amends for the sins of his father-before someone with a 20-year-old grudge kills him!