The author creates a serious and apprehensive tone is to form a level of suspense within the mind of reader. It is known to increases reader's focus because the concepts that is offered by the author is very important, hence the tone used.
How does an author develop tone?
A Tone is one that can be gotten via word choice which is diction, or sentence construction and through word order (syntax).
It can also be gotten via looking at character viewpoint that one is focuses on.
Tone is formed or changed by the way the viewpoint of the character or narrator as they treats the problem of the story and other characters, and also through the way one responds to the events surrounding a person.
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