What are some dangers once slaves reach a northern city?

Once slaves reach a northern city, they aren't free from slave catchers.

Explanation:

Slave catchers can come and take them back from the northern city.

A southerner could be their and claim them

first paragraph (and busy all the night ,with a silence deep and white )

the best description of postwar writers might be progressive.

following the war, writers showed a tendency to work on artistic or social matters rather than political themes. while postwar literature may not have been the greatest period of english literature, the themes provided excellent critics a high number of novels. such examples include anthony burgess, anthony powell and frank kermode, all of which can be placed under the progressive view.