Final answer:
Three sentences establish a gothic setting: flickering bulb casting shadows on castle wall, cracked plaster walls with dusty portraits draped in cobwebs, and a dim attic containing long-forgotten trinkets and treasures.
Explanation:
Gothic Setting Elements:
- The single bare bulb flickered overhead, casting shadows on the castle wall.
- The cracked plaster walls displayed dusty portraits draped in cobwebs.
- The dim attic contained trunks of long-forgotten trinkets and treasures.
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