He feels calm, peacful, and ect.
The Invention of Everything Else is a luminous imagining of an unlikely friendship between the eccentric inventor, Nikola Tesla, and a young hotel chambermaid, Louisa, who is obsessed with radio dramas and the secret lives of the hotel guests
It seems to me that, the thing wthat <span>the author has done in order to create a tone of seriousness in this piece is </span>a fact that he has used a long sentence with complex syntax to ask the reader to pay close attention.
Even though you haven't shared any options to choose the correct one, I bet this one will suit the question.
Regards.
<span>
</span>