How does mary shelley vary the tone of her writing in letters 1–4 of frankenstein? support your response with evidence from the text. i'm giving all my points to the first one to answer

Mary Shelley changes the tone of the story from enthusiastic to foreboding in letters 1–4. Though Walton initially sounds excited about his journey, he reveals his loneliness to his sister. When Walton meets Frankenstein, his mood brightens. He immediately looks up to Frankenstein as the friend he always wanted, even though he does not know much about him.

The tone becomes foreboding when Victor warns Walton about the danger of too much ambition: "You seek for knowledge and wisdom, as I once did; and I ardently hope that the gratification of your wishes may not be a serpent to sting you, as mine has been."

This kind of foreshadowing in the form of a prophecy, warning, or prediction is typical of gothic novels.

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.

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