The final 13 hours at the Alamo began around 5 o'clock on the afternoon of March 5, 1836.
Colonel William Barrett Travis drew a line in the dirt with his sword and asked all those who would stay and fight to cross it.
Everyone there knew that General Santa Anna's final attack on the fort was coming.
Hopes, fears and destinies played out that night for four people.
Susannah Dickinson, a woman of surprising courage, waited inside the chapel cradling her baby daughter, while her husband, Captain.