I believe it’s __c it suggests a tone
Since you didn't provide the excerpt, I am going to assume that the answer you need is 'hearken'.
<span> The mood is the atmosphere, or total feeling, within a literary work</span>
In the book, "Nethergrave", Jeremy is given a photograph with a note to do his own homework every year on his birthday from his father.
<span>C-to establish a mood of gentle anticipation before introducing characters </span>
