Final answer:
The word 'quivering' in the passage means moving or shaking with slight, rapid motions.
Step-by-step explanation:
In the given passage, the bolded word 'quivering' means moving or shaking with slight, rapid motions. The faces mentioned in the passage can be seen as moving back and forth between gloom and splendor. This word creates a sense of uncertainty and instability in the description.
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