How does the word "fugitive" in line 56
contribute to the theme of the poem?

Well I can't see the poem but I'll try my best (Hope this helps)

Explanation:

The word "fugitive" means: a person who has escaped from a place or is in hiding, especially to avoid arrest or persecution.

"fugitives from justice"

This could show from the text that the main character is running away from his problems or authorities to escape and gain independence. This could apply to the fact that the main character feels as though he has done something illegal or wrong, so he is running away from that though