The following evening (March 4), Travis sent Juana to negotiate an honorable surrender for the Alamo defenders. Fellow survivor Susanna Dickinson misinterpreted Juana's mission and, years later, accused her of deserting the Texians to provide information about their defenses to her father, who served on Santa Anna's staff. Historians place no credence in the theory that Juana spied for the Mexican army, but acknowledge that her visit likely increased Santa Anna's impatience to end the siege. As historian Timothy Todish noted, "there would have been little glory in a bloodless victory". The following morning, Santa Anna announced to his staff that the assault would take place early on March 6.