1. Why is True Son gloomy when the chapter opens?

True son was gloomy as the chapter opens, because has he sets his sights on Fort Pitt he felt oppressed by a dark structure. also he viewed him as sign of triumph over the culture of the whites.

Explanation:

When True Son first sets his eyes on Fort Pitt in Chapter 5, he felt trapped by the gloomy, dark structure. He sees the tradition as an ugly case of the limited white culture.

Fort Pitt was viewed by True Son as an indication of his triumph over the whites. the last sign of white civilization was Fort Pitt before True Son's beloved in country of Indian.