Read the excerpt from Grendel.There was nothing to stop the advance of man. Huge boars fled at the click of a harness. Wolves would cower in the glens like foxes when they caught that deadly scent. I was filled with a wordless, obscurely murderous unrest.

The narrator describes feeling “wordless” and “murderous unrest,” which suggests agitation and distress. “Troubled” best matches that unsettled feeling. “Peaceful” is the opposite, while “fearful” and “sickly” do not capture the meaning of “unrest” as well.

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