Here are three adverbial phrases. The first is "covered in dust and webs." The phrase "waited beneath the stairs" is actually the predicate of the sentence, so don't count it as an adverbial phrase. The second adverbial phrase is "safely hidden." The third adverbial phrase is "under the mildewing books and tattered newspapers."
Kurt Vonnegut emphasizes in his novel "Harrison Bergeron" that absolute justice centered on intellect, power, and attractiveness for all sections of the community is a target which would lead to bad consequence.
