The 1957 PCL season faced uncertainty about the pending ""invasion of major league baseball"" in 1958. While the meetings, wheeling and dealing and politics took place off the diamond, the historic San Francisco Seals, a charter member of the Golden Era of the league, 1903-1957, played baseball and clinched the pennant two days before the season ended. We follow this team one game at a time as players faced historic rivals from spring training through the final game of the era. Readers experience minor league baseball as it was over fifty years ago when there were no agents, next year's contract was based on this year's performance, and PCL teams consisted of a blend of major league veterans and minor leaguers on the cusp. The Pacific Coast League was no ordinary league, the Seals were no ordinary team, and 1957 was no ordinary season.