Read the excerpt from "The Adventure of the Mysterious Picture."“And now for the haunted chamber,” said the Irish captain, taking his candle.“Aye, who’s to be the hero of the night?” said the gentleman with the ruined head.“That we shall see in the morning,” said the old gentleman with the nose: “whoever looks pale and grizzly will have seen the ghost.”“Well, gentlemen,” said the Baronet, “there’s many a true thing said in jest.”How does the excerpt exemplify Gothic fiction?