Input: Relationship: 'be author of', Argument/Subject 1: 'bowden', Argument/Subject 2: 'black hawk down'

Answer: In " Guests of the Ayatollah : The First Battle in America 's War With Militant Islam , " Mark Bowden , the celebrated author of " Black Hawk Down , " takes us back to the Iran of 1979 and the America of the Carter White House , painstakingly recounting the 444 days of the Iranian hostage crisis .