Victor was in the mountains on his way to his hometown. He spent his time slowly traveling and watching the lake and mountains. Victor ended up crying because he couldn't stop thinking about William.
Victor continued on foot when the storm started. He took his time to observe and admire the storm. Victor then saw the creature, and knew he was William's murderer. He escaped up an escarpment.
Victor and Elizabeth went to see Justine in jail after she confessed. Everyone was upset and distraught. The two ladies cried and talked about how it was a false confession.
"The road ran by the side of the lake, which became narrower as I approached my native town I discovered more distinctly the black sides of Jura and the bright summit of Mont Blanc. I wept like a child. " (Shelley, 68) "During this short voyage I saw the lightnings playing on the summit of Mont Blanc in the most beautiful figures. The storm appeared to approach rapidly; and, on landing, I ascended a low hill, that I might observe its progress. It advanced; the heavens were clouded, and I soon felt the rain coming slowly in large drops, but its violence quickly increased." (Shelley, 68-69) "We entered the gloomy prison chamber and beheld Justine sitting on some straw at the farther end; he hands were manacled, and her head rested on her knees. She rose on seeing us enter, and when we were left along with her, she threw herself at the feet of Elizabeth weeping bitterly. My cousin wept also. " (Shelley, 80)
Describing the setting allows the reader to see the story's world in their mind's eyes. This can set the mood, too. Doing both of these things immerses the reader in the story. This will make the story more real and interesting.
The setting plays an important role in influencing the thoughts and actions of the characters, because the setting is the environment, which affects anything in it, including the mindset of people. The setting doesn't just relay mood of the story to the readers, but can have a real mood the characters themselves respond to. The daytime can make Victor feel secure, while the uncertainty of the nighttime wilderness causes him to act more restricted. Reaching the town for him meant the stress of dealing with the death of William, but by elongating his time in the mountains he kept his mind clear, watching the familiar landscape and interesting thunderstorms from his childhood. The storm added another layer of mystery and fear when Victor caught sight of the dreadful creature lurking, and the darkness meant Victor could not follow him. Seeing him in the daytime or in the middle of town could've warranted a completely different response from Victor.