"Based on groundbreaking new research that predicts the exact date Oak Island's treasure will be revealed, this historical adventure novel unveils the greatest heist in history. Follow Leif Erikson, not just as an explorer, but as a mathematical genius who orchestrates a 900-year conspiracy with the Knights Templar to protect ancient, powerful knowledge hidden beneath Jerusalem. From the shores of Iceland to the Temple Mount and finally to Oak Island, the Long Calculation unfolds with perfect precision, culminating on September 7,. The pattern was always there, waiting for someone with the vision to see it."