Answer:
Why not write your essay as if you are on the good side of the door and you want to open it. Remember the mom is devastated and she really does not want to live any longer since the death of her son. She then realizes- out of her mind realizes - that she just needs to go to the other side of the door. Simple. She has been warned. She does not heed the warning. She opens the door/portal. All hell breaks loose and she should have never opened the portal.
Step-by-step explanation:
It kind of reminds me of Poe writing about the woman who wished for her son to return from the war. He returns all right - zombie dead. Power is in the hand of the mother and in the hand of the old woman in the Poe story, The Monkey's Paw. Power they think will make them happy. Power becomes greed and they both get what they asked for, except that the person is still dead.