"Then I will die, Papa." 
Papa looked around the room quickly, as if searching for some proof that something had fallen from the high ceiling, something he had never thought would fall. He picked up the missal and flung it across the room, toward Jaja. It missed Jaja completely, but it hit the glass etagere, which Mama polished often. It cracked the top shelf, swept the beige, finger-size ceramic figurines of ballet dancers in various contorted postures to the hard floor and then landed after them. Or rather it landed on their many pieces. It lay there, a huge leather-bound missal that contained the readings for all three cycles of the church year. 
Jaja did not move. Papa swayed from side to side. I stood at the door, watching them. The ceiling fan spun round and round, and the light bulbs attached to it clinked against one another. Then Mama came in , her rubber slippers making slap slap sounds on the marble floor. She had changed from her sequined Sunday wrapper and the blouse with puffy sleeves. Now she had a plain tie-dye wrapper tied loosely around her waist and that white T-shirt she wore every other day. It was a souvenir from a spiritual retreat she and Papa had attended; the words GOD IS LOVE crawled over her sagging breasts. She started to pick them up with her bare hands. 
The silence was broken only by the whir of the ceiling fan as it sliced through the still air. Although our spacious dining room gave way to an even wider living room, I felt suffocated. The off-white walls with the framed photos of Grandfather were narrowing, bearing down on me. Even the glass dining table was moving toward me. 
pg. 8 

This page explains a lot about what we are going to see in the novel and just a few words. I believe this page fully introduces the family as a whole and indirectly explains a good amount of the family dynamics. We get to see how serious papa is with his rules and he is not okay when is family breaks them. Not only with rules in general, but with Mass in particular, this scene portrays how important he feels it is for his family to be in attendance. Here, we can see that the children are clearly very nervous around their own father and they have a reason to be.
Adichie makes it very easy to visualize what she is writing. Here we can see the face papa has on as he "pick(s) up with missal" and flings it towards Jaja. Adichie makes it even possible to visualize everyones facial expressions and reactions in the room at that moment. She writes with much detail, here spending much time explaining the way mama is dressed at the moment and on an everyday basis. Although she writes with much detail, her language is very straight forward making her story clear and concise.