The years from approximately 1925 to 1955, in which the evolving manuscript of the Urantia revelation was shared with a small group in Chicago called the Forum, is an intriguing period in the history of the Urantia Book and its readership. Only one source of extensive and detailed information about this period has come to light: the diaries and letters of bestselling author Harold M. Sherman and his wife Martha. During their stay in Chicago, from 1942 to 1947, the Shermans recorded what was said and done at every Forum meeting they attended. This resulted in close to two thousand pages of...