about eleven o’clock
`` Senorita Antonia , he is erecting a battery on the river bank , three hundred yards from the Alamo . This morning , ere the ground was touched , he reviewed his men in the Plaza . He stood on an elevation at the church door , surrounded by his officers and the priests , and unfurled the Mexican flag . '' `` That was about eleven o'clock , Captain ? '' `` Si , Senorita . You are precisely exact . '' `` I heard at that hour a dull roar of human voices -- a roar like nothing on earth but the distant roar of the ocean . ''