A metaphor with mechanical overtones, an unbroken chain of three situations, divergent and yet connected by a single element: pulsating, living steel. A family car with a mom and her kid, a furious truck, flying cars. An endless lullaby of engines.
Loneliness, anger. Artemisia feels she has more in common with the zoo animals than with her mother or the other girls. Perhaps, by losing herself in the wild, she will discover who she is.