The passage from Frankenstein page 93 creates a tone of "hopelessness" through its diction.
The speaker's use of words such as "blasted," "remorse," "guilt," and "intense tortures" conveys a sense of despair and anguish, suggesting that the speaker is overwhelmed by negative emotions and experiences.
This tone of hopelessness is reinforced by the speaker's reflection on the loss of "serenity of conscience" and the absence of "new hopes," indicating a profound sense of desolation and futility.
The diction in the passage thus serves to evoke a mood of bleakness and despondency, reflecting the speaker's inner turmoil and the themes of remorse and existential crisis in the poem.