Respuesta :
Considering the content of the passage, the author most likely includes the words "darker aspect," "beetle-browed," "gloomy," and "ponderous" to "establish a melancholy mood."
What is a Melancholy?
Melancholy is a term or English vocabulary that is used to describe the feeling or emotions that are characterized with pensive sadness, typically with no apparent cause.
Thus, when the author uses phrases like darker aspect," "beetle-browed," "gloomy," and "ponderous," he is trying to create a sad mood or sad atmosphere of the place.
Hence, in this case, it is concluded that the correct answer is "establish a melancholy mood."
Learn more Melancholy here: https://brainly.com/question/6916610