Obierika was a man who thought about things. when the will of the goddess had been done, he sat down in his obi and mourned his friend’s calamity. why should a man suffer so grievously for an offense he had committed inadvertently? (p. 125) based on the context clues, the best definition for the word “calamity” in the excerpt above is is it "luck" or "disaster"?

Disaster

The word "calamity" usually refers to something undesirable and tragic. Even without knowing the specific denotation of the word, we can look for context clues that might indicate the meaning. The passage states that Obierika "mourned" the event. It also uses words such as "suffer" and "grievously." These words indicate that the event was an unlucky and disastrous one.

a good summary is that there was a girl living in ny named nolan and was poor and the lack of waters proves here strenthghs in the times of hardships

i believe it is the bright red satin shirt.