Final answer:
Aunt Alexandra comes to stay with Atticus and the children to provide a steady feminine influence and guidance for Scout during the difficult times surrounding Atticus's case in 'To Kill a Mockingbird'.
Step-by-step explanation:
Aunt Alexandra has come to stay with Atticus and the children primarily because of a family crisis. The passage mentions that Aunt Alexandra's arrival is related to the death of someone named George, who had asked her to come if he got killed. While the exact details are not provided, it can be inferred that George's death has created a need for Aunt Alexandra's presence and support.
The question regarding why Aunt Alexandra has come to stay with Atticus and the children pertains to the novel 'To Kill a Mockingbird' by Harper Lee. In the narrative, Aunt Alexandra believes it is her duty to provide a feminine influence for Scout and assist with bringing up the Finch children in a respectable, Southern manner, especially considering the contentious times in which they are living due to Atticus's involvement in a high-profile case.