The Autumn of 1857 saw New York in the midst of financial failure which ruined many of its one million people. This is largely the human story of people in whose lives God came, during that time. But the main lesson is abiding. The Spirit of God, Prime believed, intended the revival to be a lasting example to the church of the relationship between His work and believing prayer. This rare title was the last which Dr. Martyn Lloyd-Jones urged for republication before his death. Few books can be more relevant for the church today.