In the excerpt the possible evidences would be:
1. <span>Some wounded thing, by the evidence a large animal, had thrashed about in the underbrush;
the jungle weeds were crushed down and the moss was lacerated; one patch of weeds was stained crimson
2. A small, glittering object not far away caught Rainsford's eye and he picked it up. It was an empty cartridge.</span>
Coming of age is a transition of one's life from young to adulthood. The stolen party talks about Rosaura. Where the author characterize Rosaura as young to her being lady. There's also hint of social classes in the society since Rosaura in the story is poor.
The speaker is sonnet 29 illustrates that love does not necessarily mean blanket immunity when disgtaced with fortune.
These setting details help establish a mood of a relaxed excitement because the day is beautiful all of the townspeople are present and they seem happy and carefree
Some of the elements which can be considered to be gothic in "the pit and the pendulum" are darkness, internal struggle, horror and terror experienced by the main character, lack of freedom, torture, etc.
