What clue was left to let Hrothgar know a demon had attacked?

According to the study, a is when you string one quote after another in an essay without connecting them

You seal resign myself to you also i guess what you mean, i behold from the beach your crooked inviting fingers, i believe you refuse to go back without feeling of me, we must have a turn together, i undress, hurry me out of sight of the land, cushion me soft, rock me in billowy drowse, dash me with amorous wet, i can repay you. in this excerpt from "song of myself," which literary device does whitman use to address the sea? alliteration allusion apostrophe onomatopoeia

What did mark twain contribute to the history of the novel? select all that apply.