Final answer:
The element of setting most evident from the bolded words is mood.
Step-by-step explanation:
The element of setting most evident from the bolded words in the passage is mood. The words 'co discoloured wall' and 'prolonged and sordid' create a dark and gloomy atmosphere, which is a reflection of the mood. The setting is described in a way that evokes a sense of decay and decayed beauty. The discolored wall and the marks of prolonged neglect contribute to the overall mood of the scene.
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