It offers a uniquely personal glimpse into their world of unfulfilled dreams and duplicity, of unexpected tragedy, as well as hope and exhilaration. The Great Unknown is the moving story of the many people Shankar meets in the courtrooms and lawyers' chambers of Old Post Office Street'some seeking justice, others watching the drama of life unfold. There he meets the last English barrister, and thus begins their unusual and unforgettable relationship. Seventeen-year-old Shankar walks on to Old Post Office Street to become a clerk in the Calcutta High Court.