Mrs. Schächter had lost her mind. On the first day of the journey she had already begun to moan. She kept asking why she had been separated from her family. Later, her sobs and screams became hysterical.
On the third night, as we were sleeping, some of us sitting, huddled against each other, some of us standing, a piercing cry broke the silence:
"Fire! I see a fire! I see a fire!"
There was a moment of panic. Who had screamed? It was Mrs. Schächter. Standing in the middle of the car, in the faint light filtering through the windows, she looked like a withered tree in a field of wheat. She was howling, pointing through the window:
"Look! Look at this fire! This terrible fire! Have mercy on me!"
Some pressed against the bars to see. There was nothing. Only the darkness of night.
Based on the passage above, Madame Schächter hallucinations are an example of the literary device of what literary device, and of what do they predict?