Essay: “An Indian Father's Plea,” by Robert Lake
http://www.allenisd.org/cms/lib/TX01001197/Centricity/Domain/1747/Unit%202%20Student%20Book.pdf ?????
Answer:
GRAPH- A diagram showing the relation between typically two variable quantities, each measured along one of a pair of axes at right angles.
The eerie atmosphere given by the unknown sets an unsettling mood, there is some supernatural element due to us not knowing what the entity that is taken over is also the characters have an unfortunate ending due to them being chased out of their own home. (I hope this helps I’m also taking this story :))