Answer:
its a clue that she sounds afraid but according to what your giving us I am not totally sure, we need the background information about the story
Explanation:
When Grendel says Unferth's "beard and hair hung straight down like seaweed", the literary device used is SIMILE.
Simile is comparing two unrelated and dissimilar things, people, beings, places, and concepts using the words "like", "as" or "such as"
Beard and Hair was compared to seaweed using "like".
